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Finding the Fourth Proportional to 560.16, 834.61 and 528.72

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Solution

The fourth proportional to 560.16, 834.61 and 528.72 is: 787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.16 : 834.61 = 528.72 : x
  2. Step 2: Convert to fraction form
    560.16/834.61 = 528.72/x
  3. Step 3: Cross multiply
    560.16x = 834.61 × 528.72
  4. Step 4: Simplify right side
    560.16x = 441,272.36
  5. Step 5: Solve for x
    x = 441,272.36/560.16
  6. Step 6: Final answer
    x = 787.76

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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.