Home / 915,242.38-1,262,285.61-644,207.50

Finding the Fourth Proportional to 915,242.38, 1,262,285.61 and 644,207.50

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Solution

The fourth proportional to 915,242.38, 1,262,285.61 and 644,207.50 is: 888,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,242.38 : 1,262,285.61 = 644,207.50 : x
  2. Step 2: Convert to fraction form
    915,242.38/1,262,285.61 = 644,207.50/x
  3. Step 3: Cross multiply
    915,242.38x = 1,262,285.61 × 644,207.50
  4. Step 4: Simplify right side
    915,242.38x = 813,173,857,104.08
  5. Step 5: Solve for x
    x = 813,173,857,104.08/915,242.38
  6. Step 6: Final answer
    x = 888,479.24

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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.