Home / 785,341.38-1,177,721.10-279,768

Finding the Fourth Proportional to 785,341.38, 1,177,721.10 and 279,768

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Solution

The fourth proportional to 785,341.38, 1,177,721.10 and 279,768 is: 419,548.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,341.38 : 1,177,721.10 = 279,768 : x
  2. Step 2: Convert to fraction form
    785,341.38/1,177,721.10 = 279,768/x
  3. Step 3: Cross multiply
    785,341.38x = 1,177,721.10 × 279,768
  4. Step 4: Simplify right side
    785,341.38x = 329,488,676,704.80
  5. Step 5: Solve for x
    x = 329,488,676,704.80/785,341.38
  6. Step 6: Final answer
    x = 419,548.35

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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.