Home / 729,470.68-1,006,837.50-427,761.88

Finding the Fourth Proportional to 729,470.68, 1,006,837.50 and 427,761.88

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Solution

The fourth proportional to 729,470.68, 1,006,837.50 and 427,761.88 is: 590,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,470.68 : 1,006,837.50 = 427,761.88 : x
  2. Step 2: Convert to fraction form
    729,470.68/1,006,837.50 = 427,761.88/x
  3. Step 3: Cross multiply
    729,470.68x = 1,006,837.50 × 427,761.88
  4. Step 4: Simplify right side
    729,470.68x = 430,686,701,854.50
  5. Step 5: Solve for x
    x = 430,686,701,854.50/729,470.68
  6. Step 6: Final answer
    x = 590,409.89

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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.