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Finding the Fourth Proportional to 657,498.92, 985,656.30 and 236,478.80

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Solution

The fourth proportional to 657,498.92, 985,656.30 and 236,478.80 is: 354,505.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,498.92 : 985,656.30 = 236,478.80 : x
  2. Step 2: Convert to fraction form
    657,498.92/985,656.30 = 236,478.80/x
  3. Step 3: Cross multiply
    657,498.92x = 985,656.30 × 236,478.80
  4. Step 4: Simplify right side
    657,498.92x = 233,086,819,036.44
  5. Step 5: Solve for x
    x = 233,086,819,036.44/657,498.92
  6. Step 6: Final answer
    x = 354,505.25

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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.