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Finding the Fourth Proportional to 577.66, 867.45 and 573.18

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Solution

The fourth proportional to 577.66, 867.45 and 573.18 is: 860.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.66 : 867.45 = 573.18 : x
  2. Step 2: Convert to fraction form
    577.66/867.45 = 573.18/x
  3. Step 3: Cross multiply
    577.66x = 867.45 × 573.18
  4. Step 4: Simplify right side
    577.66x = 497,204.99
  5. Step 5: Solve for x
    x = 497,204.99/577.66
  6. Step 6: Final answer
    x = 860.72

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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.