Home / 855,742.71-1,281,722.05-585,229.78

Finding the Fourth Proportional to 855,742.71, 1,281,722.05 and 585,229.78

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Solution

The fourth proportional to 855,742.71, 1,281,722.05 and 585,229.78 is: 876,550.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,742.71 : 1,281,722.05 = 585,229.78 : x
  2. Step 2: Convert to fraction form
    855,742.71/1,281,722.05 = 585,229.78/x
  3. Step 3: Cross multiply
    855,742.71x = 1,281,722.05 × 585,229.78
  4. Step 4: Simplify right side
    855,742.71x = 750,101,910,112.61
  5. Step 5: Solve for x
    x = 750,101,910,112.61/855,742.71
  6. Step 6: Final answer
    x = 876,550.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.