Home / 641,724.76-885,590.61-351,331.42

Finding the Fourth Proportional to 641,724.76, 885,590.61 and 351,331.42

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Solution

The fourth proportional to 641,724.76, 885,590.61 and 351,331.42 is: 484,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,724.76 : 885,590.61 = 351,331.42 : x
  2. Step 2: Convert to fraction form
    641,724.76/885,590.61 = 351,331.42/x
  3. Step 3: Cross multiply
    641,724.76x = 885,590.61 × 351,331.42
  4. Step 4: Simplify right side
    641,724.76x = 311,135,806,339.46
  5. Step 5: Solve for x
    x = 311,135,806,339.46/641,724.76
  6. Step 6: Final answer
    x = 484,843.08

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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.