Home / 753,086.97-1,039,228.92-408,909.42

Finding the Fourth Proportional to 753,086.97, 1,039,228.92 and 408,909.42

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Solution

The fourth proportional to 753,086.97, 1,039,228.92 and 408,909.42 is: 564,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,086.97 : 1,039,228.92 = 408,909.42 : x
  2. Step 2: Convert to fraction form
    753,086.97/1,039,228.92 = 408,909.42/x
  3. Step 3: Cross multiply
    753,086.97x = 1,039,228.92 × 408,909.42
  4. Step 4: Simplify right side
    753,086.97x = 424,950,494,924.43
  5. Step 5: Solve for x
    x = 424,950,494,924.43/753,086.97
  6. Step 6: Final answer
    x = 564,278.11

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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.