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Finding the Fourth Proportional to 499,354.70, 749,032.05 and 331,393.10

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Solution

The fourth proportional to 499,354.70, 749,032.05 and 331,393.10 is: 497,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,354.70 : 749,032.05 = 331,393.10 : x
  2. Step 2: Convert to fraction form
    499,354.70/749,032.05 = 331,393.10/x
  3. Step 3: Cross multiply
    499,354.70x = 749,032.05 × 331,393.10
  4. Step 4: Simplify right side
    499,354.70x = 248,224,053,048.86
  5. Step 5: Solve for x
    x = 248,224,053,048.86/499,354.70
  6. Step 6: Final answer
    x = 497,089.65

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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.