Home / 691,769.60-1,037,969.66-355,046.69

Finding the Fourth Proportional to 691,769.60, 1,037,969.66 and 355,046.69

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Solution

The fourth proportional to 691,769.60, 1,037,969.66 and 355,046.69 is: 532,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,769.60 : 1,037,969.66 = 355,046.69 : x
  2. Step 2: Convert to fraction form
    691,769.60/1,037,969.66 = 355,046.69/x
  3. Step 3: Cross multiply
    691,769.60x = 1,037,969.66 × 355,046.69
  4. Step 4: Simplify right side
    691,769.60x = 368,527,687,801.19
  5. Step 5: Solve for x
    x = 368,527,687,801.19/691,769.60
  6. Step 6: Final answer
    x = 532,731.83

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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.