Home / 498,103.72-687,355.13-283,296.04

Finding the Fourth Proportional to 498,103.72, 687,355.13 and 283,296.04

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Solution

The fourth proportional to 498,103.72, 687,355.13 and 283,296.04 is: 390,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,103.72 : 687,355.13 = 283,296.04 : x
  2. Step 2: Convert to fraction form
    498,103.72/687,355.13 = 283,296.04/x
  3. Step 3: Cross multiply
    498,103.72x = 687,355.13 × 283,296.04
  4. Step 4: Simplify right side
    498,103.72x = 194,724,986,402.69
  5. Step 5: Solve for x
    x = 194,724,986,402.69/498,103.72
  6. Step 6: Final answer
    x = 390,932.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.