Home / 755,513.40-1,133,270.10-423,046.20

Finding the Fourth Proportional to 755,513.40, 1,133,270.10 and 423,046.20

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Solution

The fourth proportional to 755,513.40, 1,133,270.10 and 423,046.20 is: 634,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,513.40 : 1,133,270.10 = 423,046.20 : x
  2. Step 2: Convert to fraction form
    755,513.40/1,133,270.10 = 423,046.20/x
  3. Step 3: Cross multiply
    755,513.40x = 1,133,270.10 × 423,046.20
  4. Step 4: Simplify right side
    755,513.40x = 479,425,609,378.62
  5. Step 5: Solve for x
    x = 479,425,609,378.62/755,513.40
  6. Step 6: Final answer
    x = 634,569.30

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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.