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Finding the Fourth Proportional to 560.66, 839.16 and 482.90

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Solution

The fourth proportional to 560.66, 839.16 and 482.90 is: 722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.66 : 839.16 = 482.90 : x
  2. Step 2: Convert to fraction form
    560.66/839.16 = 482.90/x
  3. Step 3: Cross multiply
    560.66x = 839.16 × 482.90
  4. Step 4: Simplify right side
    560.66x = 405,226.17
  5. Step 5: Solve for x
    x = 405,226.17/560.66
  6. Step 6: Final answer
    x = 722.77

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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.