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Finding the Fourth Proportional to 657,060.68, 985,697.52 and 257,484.80

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Solution

The fourth proportional to 657,060.68, 985,697.52 and 257,484.80 is: 386,268.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,060.68 : 985,697.52 = 257,484.80 : x
  2. Step 2: Convert to fraction form
    657,060.68/985,697.52 = 257,484.80/x
  3. Step 3: Cross multiply
    657,060.68x = 985,697.52 × 257,484.80
  4. Step 4: Simplify right side
    657,060.68x = 253,802,128,797.70
  5. Step 5: Solve for x
    x = 253,802,128,797.70/657,060.68
  6. Step 6: Final answer
    x = 386,268.93

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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.