Home / 498,431.24-687,811.20-283,551.20

Finding the Fourth Proportional to 498,431.24, 687,811.20 and 283,551.20

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Solution

The fourth proportional to 498,431.24, 687,811.20 and 283,551.20 is: 391,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,431.24 : 687,811.20 = 283,551.20 : x
  2. Step 2: Convert to fraction form
    498,431.24/687,811.20 = 283,551.20/x
  3. Step 3: Cross multiply
    498,431.24x = 687,811.20 × 283,551.20
  4. Step 4: Simplify right side
    498,431.24x = 195,029,691,133.44
  5. Step 5: Solve for x
    x = 195,029,691,133.44/498,431.24
  6. Step 6: Final answer
    x = 391,287.05

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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.