Home / 786,003.57-1,179,254.45-280,553.36

Finding the Fourth Proportional to 786,003.57, 1,179,254.45 and 280,553.36

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Solution

The fourth proportional to 786,003.57, 1,179,254.45 and 280,553.36 is: 420,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,003.57 : 1,179,254.45 = 280,553.36 : x
  2. Step 2: Convert to fraction form
    786,003.57/1,179,254.45 = 280,553.36/x
  3. Step 3: Cross multiply
    786,003.57x = 1,179,254.45 × 280,553.36
  4. Step 4: Simplify right side
    786,003.57x = 330,843,793,047.56
  5. Step 5: Solve for x
    x = 330,843,793,047.56/786,003.57
  6. Step 6: Final answer
    x = 420,918.94

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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.