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Finding the Fourth Proportional to 576.30, 858.98 and 560.90

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Solution

The fourth proportional to 576.30, 858.98 and 560.90 is: 836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.30 : 858.98 = 560.90 : x
  2. Step 2: Convert to fraction form
    576.30/858.98 = 560.90/x
  3. Step 3: Cross multiply
    576.30x = 858.98 × 560.90
  4. Step 4: Simplify right side
    576.30x = 481,801.88
  5. Step 5: Solve for x
    x = 481,801.88/576.30
  6. Step 6: Final answer
    x = 836.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.