Home / 721,261.60-1,079,818.80-441,325.60

Finding the Fourth Proportional to 721,261.60, 1,079,818.80 and 441,325.60

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Solution

The fourth proportional to 721,261.60, 1,079,818.80 and 441,325.60 is: 660,719.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,261.60 : 1,079,818.80 = 441,325.60 : x
  2. Step 2: Convert to fraction form
    721,261.60/1,079,818.80 = 441,325.60/x
  3. Step 3: Cross multiply
    721,261.60x = 1,079,818.80 × 441,325.60
  4. Step 4: Simplify right side
    721,261.60x = 476,551,679,801.28
  5. Step 5: Solve for x
    x = 476,551,679,801.28/721,261.60
  6. Step 6: Final answer
    x = 660,719.61

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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.