Home / 784,708.89-1,177,147.17-279,315.06

Finding the Fourth Proportional to 784,708.89, 1,177,147.17 and 279,315.06

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Solution

The fourth proportional to 784,708.89, 1,177,147.17 and 279,315.06 is: 419,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,708.89 : 1,177,147.17 = 279,315.06 : x
  2. Step 2: Convert to fraction form
    784,708.89/1,177,147.17 = 279,315.06/x
  3. Step 3: Cross multiply
    784,708.89x = 1,177,147.17 × 279,315.06
  4. Step 4: Simplify right side
    784,708.89x = 328,794,932,417.38
  5. Step 5: Solve for x
    x = 328,794,932,417.38/784,708.89
  6. Step 6: Final answer
    x = 419,002.43

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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.