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Finding the Fourth Proportional to 435,062.20, 652,593.30 and 429,157.30

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Solution

The fourth proportional to 435,062.20, 652,593.30 and 429,157.30 is: 643,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,062.20 : 652,593.30 = 429,157.30 : x
  2. Step 2: Convert to fraction form
    435,062.20/652,593.30 = 429,157.30/x
  3. Step 3: Cross multiply
    435,062.20x = 652,593.30 × 429,157.30
  4. Step 4: Simplify right side
    435,062.20x = 280,065,178,626.09
  5. Step 5: Solve for x
    x = 280,065,178,626.09/435,062.20
  6. Step 6: Final answer
    x = 643,735.95

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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.