Home / 1,081,114.43-1,491,690.38-645,446.98

Finding the Fourth Proportional to 1,081,114.43, 1,491,690.38 and 645,446.98

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Solution

The fourth proportional to 1,081,114.43, 1,491,690.38 and 645,446.98 is: 890,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,114.43 : 1,491,690.38 = 645,446.98 : x
  2. Step 2: Convert to fraction form
    1,081,114.43/1,491,690.38 = 645,446.98/x
  3. Step 3: Cross multiply
    1,081,114.43x = 1,491,690.38 × 645,446.98
  4. Step 4: Simplify right side
    1,081,114.43x = 962,807,043,909.59
  5. Step 5: Solve for x
    x = 962,807,043,909.59/1,081,114.43
  6. Step 6: Final answer
    x = 890,569.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.