Home / 1,098,515.10-1,645,007.85-722,502.30

Finding the Fourth Proportional to 1,098,515.10, 1,645,007.85 and 722,502.30

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Solution

The fourth proportional to 1,098,515.10, 1,645,007.85 and 722,502.30 is: 1,081,935.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,515.10 : 1,645,007.85 = 722,502.30 : x
  2. Step 2: Convert to fraction form
    1,098,515.10/1,645,007.85 = 722,502.30/x
  3. Step 3: Cross multiply
    1,098,515.10x = 1,645,007.85 × 722,502.30
  4. Step 4: Simplify right side
    1,098,515.10x = 1,188,521,955,143.06
  5. Step 5: Solve for x
    x = 1,188,521,955,143.06/1,098,515.10
  6. Step 6: Final answer
    x = 1,081,935.02

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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.