Home / 765,721.74-1,056,678.03-426,182.70

Finding the Fourth Proportional to 765,721.74, 1,056,678.03 and 426,182.70

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Solution

The fourth proportional to 765,721.74, 1,056,678.03 and 426,182.70 is: 588,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,721.74 : 1,056,678.03 = 426,182.70 : x
  2. Step 2: Convert to fraction form
    765,721.74/1,056,678.03 = 426,182.70/x
  3. Step 3: Cross multiply
    765,721.74x = 1,056,678.03 × 426,182.70
  4. Step 4: Simplify right side
    765,721.74x = 450,337,895,856.08
  5. Step 5: Solve for x
    x = 450,337,895,856.08/765,721.74
  6. Step 6: Final answer
    x = 588,122.12

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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.