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Finding the Fourth Proportional to 675,179.42, 932,086.24 and 521,871.39

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Solution

The fourth proportional to 675,179.42, 932,086.24 and 521,871.39 is: 720,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,179.42 : 932,086.24 = 521,871.39 : x
  2. Step 2: Convert to fraction form
    675,179.42/932,086.24 = 521,871.39/x
  3. Step 3: Cross multiply
    675,179.42x = 932,086.24 × 521,871.39
  4. Step 4: Simplify right side
    675,179.42x = 486,429,140,364.00
  5. Step 5: Solve for x
    x = 486,429,140,364.00/675,179.42
  6. Step 6: Final answer
    x = 720,444.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.