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Finding the Fourth Proportional to 534,742.10, 802,113.15 and 429,766.10

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Solution

The fourth proportional to 534,742.10, 802,113.15 and 429,766.10 is: 644,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,742.10 : 802,113.15 = 429,766.10 : x
  2. Step 2: Convert to fraction form
    534,742.10/802,113.15 = 429,766.10/x
  3. Step 3: Cross multiply
    534,742.10x = 802,113.15 × 429,766.10
  4. Step 4: Simplify right side
    534,742.10x = 344,721,040,234.22
  5. Step 5: Solve for x
    x = 344,721,040,234.22/534,742.10
  6. Step 6: Final answer
    x = 644,649.15

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