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Finding the Fourth Proportional to 657,043.88, 985,672.44 and 257,468.04

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Solution

The fourth proportional to 657,043.88, 985,672.44 and 257,468.04 is: 386,243.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,043.88 : 985,672.44 = 257,468.04 : x
  2. Step 2: Convert to fraction form
    657,043.88/985,672.44 = 257,468.04/x
  3. Step 3: Cross multiply
    657,043.88x = 985,672.44 × 257,468.04
  4. Step 4: Simplify right side
    657,043.88x = 253,779,151,208.82
  5. Step 5: Solve for x
    x = 253,779,151,208.82/657,043.88
  6. Step 6: Final answer
    x = 386,243.84

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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.