Home / 420,066.93-579,669.56-238,753.70

Finding the Fourth Proportional to 420,066.93, 579,669.56 and 238,753.70

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Solution

The fourth proportional to 420,066.93, 579,669.56 and 238,753.70 is: 329,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,066.93 : 579,669.56 = 238,753.70 : x
  2. Step 2: Convert to fraction form
    420,066.93/579,669.56 = 238,753.70/x
  3. Step 3: Cross multiply
    420,066.93x = 579,669.56 × 238,753.70
  4. Step 4: Simplify right side
    420,066.93x = 138,398,248,135.26
  5. Step 5: Solve for x
    x = 138,398,248,135.26/420,066.93
  6. Step 6: Final answer
    x = 329,467.14

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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.