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Finding the Fourth Proportional to 558,537.12, 770,758.20 and 303,889.32

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Solution

The fourth proportional to 558,537.12, 770,758.20 and 303,889.32 is: 419,354.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,537.12 : 770,758.20 = 303,889.32 : x
  2. Step 2: Convert to fraction form
    558,537.12/770,758.20 = 303,889.32/x
  3. Step 3: Cross multiply
    558,537.12x = 770,758.20 × 303,889.32
  4. Step 4: Simplify right side
    558,537.12x = 234,225,185,282.42
  5. Step 5: Solve for x
    x = 234,225,185,282.42/558,537.12
  6. Step 6: Final answer
    x = 419,354.73

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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.