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Finding the Fourth Proportional to 492,081.10, 738,121.65 and 429,873.10

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Solution

The fourth proportional to 492,081.10, 738,121.65 and 429,873.10 is: 644,809.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,081.10 : 738,121.65 = 429,873.10 : x
  2. Step 2: Convert to fraction form
    492,081.10/738,121.65 = 429,873.10/x
  3. Step 3: Cross multiply
    492,081.10x = 738,121.65 × 429,873.10
  4. Step 4: Simplify right side
    492,081.10x = 317,298,641,862.62
  5. Step 5: Solve for x
    x = 317,298,641,862.62/492,081.10
  6. Step 6: Final answer
    x = 644,809.65

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Similar ratio
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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.