Home / 786,087.25-1,179,380.09-280,637.39

Finding the Fourth Proportional to 786,087.25, 1,179,380.09 and 280,637.39

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Solution

The fourth proportional to 786,087.25, 1,179,380.09 and 280,637.39 is: 421,045.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,087.25 : 1,179,380.09 = 280,637.39 : x
  2. Step 2: Convert to fraction form
    786,087.25/1,179,380.09 = 280,637.39/x
  3. Step 3: Cross multiply
    786,087.25x = 1,179,380.09 × 280,637.39
  4. Step 4: Simplify right side
    786,087.25x = 330,978,153,925.61
  5. Step 5: Solve for x
    x = 330,978,153,925.61/786,087.25
  6. Step 6: Final answer
    x = 421,045.06

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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.