Home / 840,040.80-1,159,156.08-477,333.60

Finding the Fourth Proportional to 840,040.80, 1,159,156.08 and 477,333.60

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Solution

The fourth proportional to 840,040.80, 1,159,156.08 and 477,333.60 is: 658,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,040.80 : 1,159,156.08 = 477,333.60 : x
  2. Step 2: Convert to fraction form
    840,040.80/1,159,156.08 = 477,333.60/x
  3. Step 3: Cross multiply
    840,040.80x = 1,159,156.08 × 477,333.60
  4. Step 4: Simplify right side
    840,040.80x = 553,304,144,628.29
  5. Step 5: Solve for x
    x = 553,304,144,628.29/840,040.80
  6. Step 6: Final answer
    x = 658,663.42

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.