Home / 785,142.24-1,177,069.82-279,415.24

Finding the Fourth Proportional to 785,142.24, 1,177,069.82 and 279,415.24

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Solution

The fourth proportional to 785,142.24, 1,177,069.82 and 279,415.24 is: 418,893.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,142.24 : 1,177,069.82 = 279,415.24 : x
  2. Step 2: Convert to fraction form
    785,142.24/1,177,069.82 = 279,415.24/x
  3. Step 3: Cross multiply
    785,142.24x = 1,177,069.82 × 279,415.24
  4. Step 4: Simplify right side
    785,142.24x = 328,891,246,252.06
  5. Step 5: Solve for x
    x = 328,891,246,252.06/785,142.24
  6. Step 6: Final answer
    x = 418,893.84

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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.