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Finding the Fourth Proportional to 558,198.72, 770,308.80 and 303,552

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Solution

The fourth proportional to 558,198.72, 770,308.80 and 303,552 is: 418,898.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,198.72 : 770,308.80 = 303,552 : x
  2. Step 2: Convert to fraction form
    558,198.72/770,308.80 = 303,552/x
  3. Step 3: Cross multiply
    558,198.72x = 770,308.80 × 303,552
  4. Step 4: Simplify right side
    558,198.72x = 233,828,776,857.60
  5. Step 5: Solve for x
    x = 233,828,776,857.60/558,198.72
  6. Step 6: Final answer
    x = 418,898.81

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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.