Home / 425,926.30-639,612.56-284,679.24

Finding the Fourth Proportional to 425,926.30, 639,612.56 and 284,679.24

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Solution

The fourth proportional to 425,926.30, 639,612.56 and 284,679.24 is: 427,502.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,926.30 : 639,612.56 = 284,679.24 : x
  2. Step 2: Convert to fraction form
    425,926.30/639,612.56 = 284,679.24/x
  3. Step 3: Cross multiply
    425,926.30x = 639,612.56 × 284,679.24
  4. Step 4: Simplify right side
    425,926.30x = 182,084,419,074.29
  5. Step 5: Solve for x
    x = 182,084,419,074.29/425,926.30
  6. Step 6: Final answer
    x = 427,502.18

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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.