Home / 1,102,229.28-1,653,448.50-428,362.65

Finding the Fourth Proportional to 1,102,229.28, 1,653,448.50 and 428,362.65

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Solution

The fourth proportional to 1,102,229.28, 1,653,448.50 and 428,362.65 is: 642,584.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,229.28 : 1,653,448.50 = 428,362.65 : x
  2. Step 2: Convert to fraction form
    1,102,229.28/1,653,448.50 = 428,362.65/x
  3. Step 3: Cross multiply
    1,102,229.28x = 1,653,448.50 × 428,362.65
  4. Step 4: Simplify right side
    1,102,229.28x = 708,275,581,098.53
  5. Step 5: Solve for x
    x = 708,275,581,098.53/1,102,229.28
  6. Step 6: Final answer
    x = 642,584.62

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Double scale
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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.