Home / 641,724.45-885,672.39-369,740.22

Finding the Fourth Proportional to 641,724.45, 885,672.39 and 369,740.22

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Solution

The fourth proportional to 641,724.45, 885,672.39 and 369,740.22 is: 510,294.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,724.45 : 885,672.39 = 369,740.22 : x
  2. Step 2: Convert to fraction form
    641,724.45/885,672.39 = 369,740.22/x
  3. Step 3: Cross multiply
    641,724.45x = 885,672.39 × 369,740.22
  4. Step 4: Simplify right side
    641,724.45x = 327,468,704,326.53
  5. Step 5: Solve for x
    x = 327,468,704,326.53/641,724.45
  6. Step 6: Final answer
    x = 510,294.88

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1.5x scale

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.