Home / 854,734.20-1,282,101.30-480,708.60

Finding the Fourth Proportional to 854,734.20, 1,282,101.30 and 480,708.60

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Solution

The fourth proportional to 854,734.20, 1,282,101.30 and 480,708.60 is: 721,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,734.20 : 1,282,101.30 = 480,708.60 : x
  2. Step 2: Convert to fraction form
    854,734.20/1,282,101.30 = 480,708.60/x
  3. Step 3: Cross multiply
    854,734.20x = 1,282,101.30 × 480,708.60
  4. Step 4: Simplify right side
    854,734.20x = 616,317,120,981.18
  5. Step 5: Solve for x
    x = 616,317,120,981.18/854,734.20
  6. Step 6: Final answer
    x = 721,062.90

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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.