Home / 499,359.20-749,038.80-331,397.60

Finding the Fourth Proportional to 499,359.20, 749,038.80 and 331,397.60

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Solution

The fourth proportional to 499,359.20, 749,038.80 and 331,397.60 is: 497,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,359.20 : 749,038.80 = 331,397.60 : x
  2. Step 2: Convert to fraction form
    499,359.20/749,038.80 = 331,397.60/x
  3. Step 3: Cross multiply
    499,359.20x = 749,038.80 × 331,397.60
  4. Step 4: Simplify right side
    499,359.20x = 248,229,660,626.88
  5. Step 5: Solve for x
    x = 248,229,660,626.88/499,359.20
  6. Step 6: Final answer
    x = 497,096.40

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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.