Home / 1,081,165.66-1,491,760.58-645,498.10

Finding the Fourth Proportional to 1,081,165.66, 1,491,760.58 and 645,498.10

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Solution

The fourth proportional to 1,081,165.66, 1,491,760.58 and 645,498.10 is: 890,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,165.66 : 1,491,760.58 = 645,498.10 : x
  2. Step 2: Convert to fraction form
    1,081,165.66/1,491,760.58 = 645,498.10/x
  3. Step 3: Cross multiply
    1,081,165.66x = 1,491,760.58 × 645,498.10
  4. Step 4: Simplify right side
    1,081,165.66x = 962,928,620,044.90
  5. Step 5: Solve for x
    x = 962,928,620,044.90/1,081,165.66
  6. Step 6: Final answer
    x = 890,639.29

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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.