Home / 497,919.14-687,125.22-283,059.20

Finding the Fourth Proportional to 497,919.14, 687,125.22 and 283,059.20

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Solution

The fourth proportional to 497,919.14, 687,125.22 and 283,059.20 is: 390,619.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,919.14 : 687,125.22 = 283,059.20 : x
  2. Step 2: Convert to fraction form
    497,919.14/687,125.22 = 283,059.20/x
  3. Step 3: Cross multiply
    497,919.14x = 687,125.22 × 283,059.20
  4. Step 4: Simplify right side
    497,919.14x = 194,497,115,073.02
  5. Step 5: Solve for x
    x = 194,497,115,073.02/497,919.14
  6. Step 6: Final answer
    x = 390,619.88

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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.