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Finding the Fourth Proportional to 653,076.70, 978,302.85 and 372,265.90

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Solution

The fourth proportional to 653,076.70, 978,302.85 and 372,265.90 is: 557,650.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,076.70 : 978,302.85 = 372,265.90 : x
  2. Step 2: Convert to fraction form
    653,076.70/978,302.85 = 372,265.90/x
  3. Step 3: Cross multiply
    653,076.70x = 978,302.85 × 372,265.90
  4. Step 4: Simplify right side
    653,076.70x = 364,188,790,927.82
  5. Step 5: Solve for x
    x = 364,188,790,927.82/653,076.70
  6. Step 6: Final answer
    x = 557,650.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.