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Finding the Fourth Proportional to 572,663.80, 858,995.70 and 522,800.20

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Solution

The fourth proportional to 572,663.80, 858,995.70 and 522,800.20 is: 784,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,663.80 : 858,995.70 = 522,800.20 : x
  2. Step 2: Convert to fraction form
    572,663.80/858,995.70 = 522,800.20/x
  3. Step 3: Cross multiply
    572,663.80x = 858,995.70 × 522,800.20
  4. Step 4: Simplify right side
    572,663.80x = 449,083,123,759.14
  5. Step 5: Solve for x
    x = 449,083,123,759.14/572,663.80
  6. Step 6: Final answer
    x = 784,200.30

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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.