Home / 876,100.20-1,314,150.30-781,621.80

Finding the Fourth Proportional to 876,100.20, 1,314,150.30 and 781,621.80

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Solution

The fourth proportional to 876,100.20, 1,314,150.30 and 781,621.80 is: 1,172,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,100.20 : 1,314,150.30 = 781,621.80 : x
  2. Step 2: Convert to fraction form
    876,100.20/1,314,150.30 = 781,621.80/x
  3. Step 3: Cross multiply
    876,100.20x = 1,314,150.30 × 781,621.80
  4. Step 4: Simplify right side
    876,100.20x = 1,027,168,522,956.54
  5. Step 5: Solve for x
    x = 1,027,168,522,956.54/876,100.20
  6. Step 6: Final answer
    x = 1,172,432.70

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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.