Home / 497,747.40-746,621.10-329,785.80

Finding the Fourth Proportional to 497,747.40, 746,621.10 and 329,785.80

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Solution

The fourth proportional to 497,747.40, 746,621.10 and 329,785.80 is: 494,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,747.40 : 746,621.10 = 329,785.80 : x
  2. Step 2: Convert to fraction form
    497,747.40/746,621.10 = 329,785.80/x
  3. Step 3: Cross multiply
    497,747.40x = 746,621.10 × 329,785.80
  4. Step 4: Simplify right side
    497,747.40x = 246,225,036,760.38
  5. Step 5: Solve for x
    x = 246,225,036,760.38/497,747.40
  6. Step 6: Final answer
    x = 494,678.70

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Double scale
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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.