Home / 689,672.87-1,034,508.29-216,395.13

Finding the Fourth Proportional to 689,672.87, 1,034,508.29 and 216,395.13

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Solution

The fourth proportional to 689,672.87, 1,034,508.29 and 216,395.13 is: 324,592.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,672.87 : 1,034,508.29 = 216,395.13 : x
  2. Step 2: Convert to fraction form
    689,672.87/1,034,508.29 = 216,395.13/x
  3. Step 3: Cross multiply
    689,672.87x = 1,034,508.29 × 216,395.13
  4. Step 4: Simplify right side
    689,672.87x = 223,862,554,818.65
  5. Step 5: Solve for x
    x = 223,862,554,818.65/689,672.87
  6. Step 6: Final answer
    x = 324,592.38

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Similar ratio
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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.