Home / 787,218.60-1,180,827.90-721,900.20

Finding the Fourth Proportional to 787,218.60, 1,180,827.90 and 721,900.20

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Solution

The fourth proportional to 787,218.60, 1,180,827.90 and 721,900.20 is: 1,082,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,218.60 : 1,180,827.90 = 721,900.20 : x
  2. Step 2: Convert to fraction form
    787,218.60/1,180,827.90 = 721,900.20/x
  3. Step 3: Cross multiply
    787,218.60x = 1,180,827.90 × 721,900.20
  4. Step 4: Simplify right side
    787,218.60x = 852,439,897,175.58
  5. Step 5: Solve for x
    x = 852,439,897,175.58/787,218.60
  6. Step 6: Final answer
    x = 1,082,850.30

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1.5x scale

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.