Home / 689,294.95-951,086.21-402,759.68

Finding the Fourth Proportional to 689,294.95, 951,086.21 and 402,759.68

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Solution

The fourth proportional to 689,294.95, 951,086.21 and 402,759.68 is: 555,726.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,294.95 : 951,086.21 = 402,759.68 : x
  2. Step 2: Convert to fraction form
    689,294.95/951,086.21 = 402,759.68/x
  3. Step 3: Cross multiply
    689,294.95x = 951,086.21 × 402,759.68
  4. Step 4: Simplify right side
    689,294.95x = 383,059,170,822.78
  5. Step 5: Solve for x
    x = 383,059,170,822.78/689,294.95
  6. Step 6: Final answer
    x = 555,726.07

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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.