Home / 729,456.43-1,006,817.84-427,747.63

Finding the Fourth Proportional to 729,456.43, 1,006,817.84 and 427,747.63

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Solution

The fourth proportional to 729,456.43, 1,006,817.84 and 427,747.63 is: 590,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,456.43 : 1,006,817.84 = 427,747.63 : x
  2. Step 2: Convert to fraction form
    729,456.43/1,006,817.84 = 427,747.63/x
  3. Step 3: Cross multiply
    729,456.43x = 1,006,817.84 × 427,747.63
  4. Step 4: Simplify right side
    729,456.43x = 430,663,944,901.72
  5. Step 5: Solve for x
    x = 430,663,944,901.72/729,456.43
  6. Step 6: Final answer
    x = 590,390.22

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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.