Home / 786,084.39-1,179,375.80-280,634.19

Finding the Fourth Proportional to 786,084.39, 1,179,375.80 and 280,634.19

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Solution

The fourth proportional to 786,084.39, 1,179,375.80 and 280,634.19 is: 421,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,084.39 : 1,179,375.80 = 280,634.19 : x
  2. Step 2: Convert to fraction form
    786,084.39/1,179,375.80 = 280,634.19/x
  3. Step 3: Cross multiply
    786,084.39x = 1,179,375.80 × 280,634.19
  4. Step 4: Simplify right side
    786,084.39x = 330,973,170,935.43
  5. Step 5: Solve for x
    x = 330,973,170,935.43/786,084.39
  6. Step 6: Final answer
    x = 421,040.25

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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.