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Finding the Fourth Proportional to 492,057.10, 738,085.65 and 429,849.10

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Solution

The fourth proportional to 492,057.10, 738,085.65 and 429,849.10 is: 644,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,057.10 : 738,085.65 = 429,849.10 : x
  2. Step 2: Convert to fraction form
    492,057.10/738,085.65 = 429,849.10/x
  3. Step 3: Cross multiply
    492,057.10x = 738,085.65 × 429,849.10
  4. Step 4: Simplify right side
    492,057.10x = 317,265,452,375.42
  5. Step 5: Solve for x
    x = 317,265,452,375.42/492,057.10
  6. Step 6: Final answer
    x = 644,773.65

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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.