Home / 784,731.18-1,177,110.42-216,109.38

Finding the Fourth Proportional to 784,731.18, 1,177,110.42 and 216,109.38

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Solution

The fourth proportional to 784,731.18, 1,177,110.42 and 216,109.38 is: 324,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,731.18 : 1,177,110.42 = 216,109.38 : x
  2. Step 2: Convert to fraction form
    784,731.18/1,177,110.42 = 216,109.38/x
  3. Step 3: Cross multiply
    784,731.18x = 1,177,110.42 × 216,109.38
  4. Step 4: Simplify right side
    784,731.18x = 254,384,603,057.74
  5. Step 5: Solve for x
    x = 254,384,603,057.74/784,731.18
  6. Step 6: Final answer
    x = 324,167.83

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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.