Home / 785,157.84-1,177,711.64-329,990.22

Finding the Fourth Proportional to 785,157.84, 1,177,711.64 and 329,990.22

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Solution

The fourth proportional to 785,157.84, 1,177,711.64 and 329,990.22 is: 494,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,157.84 : 1,177,711.64 = 329,990.22 : x
  2. Step 2: Convert to fraction form
    785,157.84/1,177,711.64 = 329,990.22/x
  3. Step 3: Cross multiply
    785,157.84x = 1,177,711.64 × 329,990.22
  4. Step 4: Simplify right side
    785,157.84x = 388,633,323,180.16
  5. Step 5: Solve for x
    x = 388,633,323,180.16/785,157.84
  6. Step 6: Final answer
    x = 494,974.77

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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.