Home / 868,800.60-1,303,200.90-721,834.20

Finding the Fourth Proportional to 868,800.60, 1,303,200.90 and 721,834.20

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Solution

The fourth proportional to 868,800.60, 1,303,200.90 and 721,834.20 is: 1,082,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,800.60 : 1,303,200.90 = 721,834.20 : x
  2. Step 2: Convert to fraction form
    868,800.60/1,303,200.90 = 721,834.20/x
  3. Step 3: Cross multiply
    868,800.60x = 1,303,200.90 × 721,834.20
  4. Step 4: Simplify right side
    868,800.60x = 940,694,979,090.78
  5. Step 5: Solve for x
    x = 940,694,979,090.78/868,800.60
  6. Step 6: Final answer
    x = 1,082,751.30

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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.