Home / 787,219.60-1,180,829.40-721,901.20

Finding the Fourth Proportional to 787,219.60, 1,180,829.40 and 721,901.20

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Solution

The fourth proportional to 787,219.60, 1,180,829.40 and 721,901.20 is: 1,082,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,219.60 : 1,180,829.40 = 721,901.20 : x
  2. Step 2: Convert to fraction form
    787,219.60/1,180,829.40 = 721,901.20/x
  3. Step 3: Cross multiply
    787,219.60x = 1,180,829.40 × 721,901.20
  4. Step 4: Simplify right side
    787,219.60x = 852,442,160,855.28
  5. Step 5: Solve for x
    x = 852,442,160,855.28/787,219.60
  6. Step 6: Final answer
    x = 1,082,851.80

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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.