Home / 689,426.26-1,034,139.69-216,148.52

Finding the Fourth Proportional to 689,426.26, 1,034,139.69 and 216,148.52

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Solution

The fourth proportional to 689,426.26, 1,034,139.69 and 216,148.52 is: 324,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,426.26 : 1,034,139.69 = 216,148.52 : x
  2. Step 2: Convert to fraction form
    689,426.26/1,034,139.69 = 216,148.52/x
  3. Step 3: Cross multiply
    689,426.26x = 1,034,139.69 × 216,148.52
  4. Step 4: Simplify right side
    689,426.26x = 223,527,766,052.11
  5. Step 5: Solve for x
    x = 223,527,766,052.11/689,426.26
  6. Step 6: Final answer
    x = 324,222.88

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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.