Home / 657,630.20-985,862.09-320,482.28

Finding the Fourth Proportional to 657,630.20, 985,862.09 and 320,482.28

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Solution

The fourth proportional to 657,630.20, 985,862.09 and 320,482.28 is: 480,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,630.20 : 985,862.09 = 320,482.28 : x
  2. Step 2: Convert to fraction form
    657,630.20/985,862.09 = 320,482.28/x
  3. Step 3: Cross multiply
    657,630.20x = 985,862.09 × 320,482.28
  4. Step 4: Simplify right side
    657,630.20x = 315,951,326,240.66
  5. Step 5: Solve for x
    x = 315,951,326,240.66/657,630.20
  6. Step 6: Final answer
    x = 480,439.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.