Home / 1,187,872.80-1,781,809.20-739,975.20

Finding the Fourth Proportional to 1,187,872.80, 1,781,809.20 and 739,975.20

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Solution

The fourth proportional to 1,187,872.80, 1,781,809.20 and 739,975.20 is: 1,109,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,872.80 : 1,781,809.20 = 739,975.20 : x
  2. Step 2: Convert to fraction form
    1,187,872.80/1,781,809.20 = 739,975.20/x
  3. Step 3: Cross multiply
    1,187,872.80x = 1,781,809.20 × 739,975.20
  4. Step 4: Simplify right side
    1,187,872.80x = 1,318,494,619,131.84
  5. Step 5: Solve for x
    x = 1,318,494,619,131.84/1,187,872.80
  6. Step 6: Final answer
    x = 1,109,962.80

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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.