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Finding the Fourth Proportional to 463,508.73, 639,695.88 and 282,326.72

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Solution

The fourth proportional to 463,508.73, 639,695.88 and 282,326.72 is: 389,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,508.73 : 639,695.88 = 282,326.72 : x
  2. Step 2: Convert to fraction form
    463,508.73/639,695.88 = 282,326.72/x
  3. Step 3: Cross multiply
    463,508.73x = 639,695.88 × 282,326.72
  4. Step 4: Simplify right side
    463,508.73x = 180,603,236,399.43
  5. Step 5: Solve for x
    x = 180,603,236,399.43/463,508.73
  6. Step 6: Final answer
    x = 389,643.66

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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.