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Finding the Fourth Proportional to 547,754.40, 821,695.60 and 173,815.20

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Solution

The fourth proportional to 547,754.40, 821,695.60 and 173,815.20 is: 260,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,754.40 : 821,695.60 = 173,815.20 : x
  2. Step 2: Convert to fraction form
    547,754.40/821,695.60 = 173,815.20/x
  3. Step 3: Cross multiply
    547,754.40x = 821,695.60 × 173,815.20
  4. Step 4: Simplify right side
    547,754.40x = 142,823,185,053.12
  5. Step 5: Solve for x
    x = 142,823,185,053.12/547,754.40
  6. Step 6: Final answer
    x = 260,743.11

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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.