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Finding the Fourth Proportional to 576,576.98, 864,868.56 and 378,153.88

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Solution

The fourth proportional to 576,576.98, 864,868.56 and 378,153.88 is: 567,232.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,576.98 : 864,868.56 = 378,153.88 : x
  2. Step 2: Convert to fraction form
    576,576.98/864,868.56 = 378,153.88/x
  3. Step 3: Cross multiply
    576,576.98x = 864,868.56 × 378,153.88
  4. Step 4: Simplify right side
    576,576.98x = 327,053,398,073.76
  5. Step 5: Solve for x
    x = 327,053,398,073.76/576,576.98
  6. Step 6: Final answer
    x = 567,232.84

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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.