Home / 657,132.45-985,274.88-257,813.61

Finding the Fourth Proportional to 657,132.45, 985,274.88 and 257,813.61

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Solution

The fourth proportional to 657,132.45, 985,274.88 and 257,813.61 is: 386,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,132.45 : 985,274.88 = 257,813.61 : x
  2. Step 2: Convert to fraction form
    657,132.45/985,274.88 = 257,813.61/x
  3. Step 3: Cross multiply
    657,132.45x = 985,274.88 × 257,813.61
  4. Step 4: Simplify right side
    657,132.45x = 254,017,273,655.12
  5. Step 5: Solve for x
    x = 254,017,273,655.12/657,132.45
  6. Step 6: Final answer
    x = 386,554.15

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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.