Home / 785,155.84-1,177,708.65-329,988.22

Finding the Fourth Proportional to 785,155.84, 1,177,708.65 and 329,988.22

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Solution

The fourth proportional to 785,155.84, 1,177,708.65 and 329,988.22 is: 494,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,155.84 : 1,177,708.65 = 329,988.22 : x
  2. Step 2: Convert to fraction form
    785,155.84/1,177,708.65 = 329,988.22/x
  3. Step 3: Cross multiply
    785,155.84x = 1,177,708.65 × 329,988.22
  4. Step 4: Simplify right side
    785,155.84x = 388,629,981,092.10
  5. Step 5: Solve for x
    x = 388,629,981,092.10/785,155.84
  6. Step 6: Final answer
    x = 494,971.78

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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.