Home / 908,005.25-1,252,937.55-520,800.61

Finding the Fourth Proportional to 908,005.25, 1,252,937.55 and 520,800.61

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Solution

The fourth proportional to 908,005.25, 1,252,937.55 and 520,800.61 is: 718,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,005.25 : 1,252,937.55 = 520,800.61 : x
  2. Step 2: Convert to fraction form
    908,005.25/1,252,937.55 = 520,800.61/x
  3. Step 3: Cross multiply
    908,005.25x = 1,252,937.55 × 520,800.61
  4. Step 4: Simplify right side
    908,005.25x = 652,530,640,331.91
  5. Step 5: Solve for x
    x = 652,530,640,331.91/908,005.25
  6. Step 6: Final answer
    x = 718,641.92

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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.