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Finding the Fourth Proportional to 558,890.67, 771,375.42 and 317,195.89

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Solution

The fourth proportional to 558,890.67, 771,375.42 and 317,195.89 is: 437,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,890.67 : 771,375.42 = 317,195.89 : x
  2. Step 2: Convert to fraction form
    558,890.67/771,375.42 = 317,195.89/x
  3. Step 3: Cross multiply
    558,890.67x = 771,375.42 × 317,195.89
  4. Step 4: Simplify right side
    558,890.67x = 244,677,112,871.02
  5. Step 5: Solve for x
    x = 244,677,112,871.02/558,890.67
  6. Step 6: Final answer
    x = 437,790.66

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