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Finding the Fourth Proportional to 499,488.80, 749,233.20 and 331,527.20

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Solution

The fourth proportional to 499,488.80, 749,233.20 and 331,527.20 is: 497,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,488.80 : 749,233.20 = 331,527.20 : x
  2. Step 2: Convert to fraction form
    499,488.80/749,233.20 = 331,527.20/x
  3. Step 3: Cross multiply
    499,488.80x = 749,233.20 × 331,527.20
  4. Step 4: Simplify right side
    499,488.80x = 248,391,184,943.04
  5. Step 5: Solve for x
    x = 248,391,184,943.04/499,488.80
  6. Step 6: Final answer
    x = 497,290.80

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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.