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Finding the Fourth Proportional to 478,732.32, 718,020.60 and 226,012.32

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Solution

The fourth proportional to 478,732.32, 718,020.60 and 226,012.32 is: 338,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,732.32 : 718,020.60 = 226,012.32 : x
  2. Step 2: Convert to fraction form
    478,732.32/718,020.60 = 226,012.32/x
  3. Step 3: Cross multiply
    478,732.32x = 718,020.60 × 226,012.32
  4. Step 4: Simplify right side
    478,732.32x = 162,281,501,613.79
  5. Step 5: Solve for x
    x = 162,281,501,613.79/478,732.32
  6. Step 6: Final answer
    x = 338,981.71

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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.