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Finding the Fourth Proportional to 558,796.80, 771,287.80 and 344,116.72

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Solution

The fourth proportional to 558,796.80, 771,287.80 and 344,116.72 is: 474,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,796.80 : 771,287.80 = 344,116.72 : x
  2. Step 2: Convert to fraction form
    558,796.80/771,287.80 = 344,116.72/x
  3. Step 3: Cross multiply
    558,796.80x = 771,287.80 × 344,116.72
  4. Step 4: Simplify right side
    558,796.80x = 265,413,027,912.02
  5. Step 5: Solve for x
    x = 265,413,027,912.02/558,796.80
  6. Step 6: Final answer
    x = 474,972.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.