Home / 420,084.30-579,693.24-238,771.02

Finding the Fourth Proportional to 420,084.30, 579,693.24 and 238,771.02

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Solution

The fourth proportional to 420,084.30, 579,693.24 and 238,771.02 is: 329,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,084.30 : 579,693.24 = 238,771.02 : x
  2. Step 2: Convert to fraction form
    420,084.30/579,693.24 = 238,771.02/x
  3. Step 3: Cross multiply
    420,084.30x = 579,693.24 × 238,771.02
  4. Step 4: Simplify right side
    420,084.30x = 138,413,946,201.91
  5. Step 5: Solve for x
    x = 138,413,946,201.91/420,084.30
  6. Step 6: Final answer
    x = 329,490.88

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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.