Home / 420,045.52-579,677.36-238,765.04

Finding the Fourth Proportional to 420,045.52, 579,677.36 and 238,765.04

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Solution

The fourth proportional to 420,045.52, 579,677.36 and 238,765.04 is: 329,504.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,045.52 : 579,677.36 = 238,765.04 : x
  2. Step 2: Convert to fraction form
    420,045.52/579,677.36 = 238,765.04/x
  3. Step 3: Cross multiply
    420,045.52x = 579,677.36 × 238,765.04
  4. Step 4: Simplify right side
    420,045.52x = 138,406,688,047.49
  5. Step 5: Solve for x
    x = 138,406,688,047.49/420,045.52
  6. Step 6: Final answer
    x = 329,504.02

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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.