Home / 629,264.70-868,707.18-426,387.78

Finding the Fourth Proportional to 629,264.70, 868,707.18 and 426,387.78

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Solution

The fourth proportional to 629,264.70, 868,707.18 and 426,387.78 is: 588,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,264.70 : 868,707.18 = 426,387.78 : x
  2. Step 2: Convert to fraction form
    629,264.70/868,707.18 = 426,387.78/x
  3. Step 3: Cross multiply
    629,264.70x = 868,707.18 × 426,387.78
  4. Step 4: Simplify right side
    629,264.70x = 370,406,125,950.26
  5. Step 5: Solve for x
    x = 370,406,125,950.26/629,264.70
  6. Step 6: Final answer
    x = 588,633.25

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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.