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Finding the Fourth Proportional to 558,937.40, 771,347.41 and 304,302.56

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Solution

The fourth proportional to 558,937.40, 771,347.41 and 304,302.56 is: 419,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,937.40 : 771,347.41 = 304,302.56 : x
  2. Step 2: Convert to fraction form
    558,937.40/771,347.41 = 304,302.56/x
  3. Step 3: Cross multiply
    558,937.40x = 771,347.41 × 304,302.56
  4. Step 4: Simplify right side
    558,937.40x = 234,722,986,894.88
  5. Step 5: Solve for x
    x = 234,722,986,894.88/558,937.40
  6. Step 6: Final answer
    x = 419,945.04

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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.