Home / 721,845.60-1,080,435.60-563,215.20

Finding the Fourth Proportional to 721,845.60, 1,080,435.60 and 563,215.20

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Solution

The fourth proportional to 721,845.60, 1,080,435.60 and 563,215.20 is: 843,002.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,845.60 : 1,080,435.60 = 563,215.20 : x
  2. Step 2: Convert to fraction form
    721,845.60/1,080,435.60 = 563,215.20/x
  3. Step 3: Cross multiply
    721,845.60x = 1,080,435.60 × 563,215.20
  4. Step 4: Simplify right side
    721,845.60x = 608,517,752,541.12
  5. Step 5: Solve for x
    x = 608,517,752,541.12/721,845.60
  6. Step 6: Final answer
    x = 843,002.65

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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.