Home / 547,206.40-820,732.80-173,267.20

Finding the Fourth Proportional to 547,206.40, 820,732.80 and 173,267.20

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Solution

The fourth proportional to 547,206.40, 820,732.80 and 173,267.20 is: 259,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,206.40 : 820,732.80 = 173,267.20 : x
  2. Step 2: Convert to fraction form
    547,206.40/820,732.80 = 173,267.20/x
  3. Step 3: Cross multiply
    547,206.40x = 820,732.80 × 173,267.20
  4. Step 4: Simplify right side
    547,206.40x = 142,206,074,204.16
  5. Step 5: Solve for x
    x = 142,206,074,204.16/547,206.40
  6. Step 6: Final answer
    x = 259,876.48

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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.