Home / 1,026,663.40-1,539,995.10-427,425.40

Finding the Fourth Proportional to 1,026,663.40, 1,539,995.10 and 427,425.40

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Solution

The fourth proportional to 1,026,663.40, 1,539,995.10 and 427,425.40 is: 641,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,663.40 : 1,539,995.10 = 427,425.40 : x
  2. Step 2: Convert to fraction form
    1,026,663.40/1,539,995.10 = 427,425.40/x
  3. Step 3: Cross multiply
    1,026,663.40x = 1,539,995.10 × 427,425.40
  4. Step 4: Simplify right side
    1,026,663.40x = 658,233,021,615.54
  5. Step 5: Solve for x
    x = 658,233,021,615.54/1,026,663.40
  6. Step 6: Final answer
    x = 641,138.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.