Home / 729,149.43-1,006,437.42-423,294.51

Finding the Fourth Proportional to 729,149.43, 1,006,437.42 and 423,294.51

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Solution

The fourth proportional to 729,149.43, 1,006,437.42 and 423,294.51 is: 584,269.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,149.43 : 1,006,437.42 = 423,294.51 : x
  2. Step 2: Convert to fraction form
    729,149.43/1,006,437.42 = 423,294.51/x
  3. Step 3: Cross multiply
    729,149.43x = 1,006,437.42 × 423,294.51
  4. Step 4: Simplify right side
    729,149.43x = 426,019,434,544.56
  5. Step 5: Solve for x
    x = 426,019,434,544.56/729,149.43
  6. Step 6: Final answer
    x = 584,269.04

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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.