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Finding the Fourth Proportional to 576.49, 864.74 and 547.33

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Solution

The fourth proportional to 576.49, 864.74 and 547.33 is: 821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.49 : 864.74 = 547.33 : x
  2. Step 2: Convert to fraction form
    576.49/864.74 = 547.33/x
  3. Step 3: Cross multiply
    576.49x = 864.74 × 547.33
  4. Step 4: Simplify right side
    576.49x = 473,298.14
  5. Step 5: Solve for x
    x = 473,298.14/576.49
  6. Step 6: Final answer
    x = 821.00

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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.