Home / 420,023.04-579,742.29-238,841.16

Finding the Fourth Proportional to 420,023.04, 579,742.29 and 238,841.16

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Solution

The fourth proportional to 420,023.04, 579,742.29 and 238,841.16 is: 329,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,023.04 : 579,742.29 = 238,841.16 : x
  2. Step 2: Convert to fraction form
    420,023.04/579,742.29 = 238,841.16/x
  3. Step 3: Cross multiply
    420,023.04x = 579,742.29 × 238,841.16
  4. Step 4: Simplify right side
    420,023.04x = 138,466,321,044.66
  5. Step 5: Solve for x
    x = 138,466,321,044.66/420,023.04
  6. Step 6: Final answer
    x = 329,663.63

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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.