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Finding the Fourth Proportional to 436,559.68, 654,839.52 and 288,781.12

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Solution

The fourth proportional to 436,559.68, 654,839.52 and 288,781.12 is: 433,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,559.68 : 654,839.52 = 288,781.12 : x
  2. Step 2: Convert to fraction form
    436,559.68/654,839.52 = 288,781.12/x
  3. Step 3: Cross multiply
    436,559.68x = 654,839.52 × 288,781.12
  4. Step 4: Simplify right side
    436,559.68x = 189,105,290,005.86
  5. Step 5: Solve for x
    x = 189,105,290,005.86/436,559.68
  6. Step 6: Final answer
    x = 433,171.68

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Similar ratio
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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.