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Finding the Fourth Proportional to 560.72, 835.76 and 529.36

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Solution

The fourth proportional to 560.72, 835.76 and 529.36 is: 789.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.72 : 835.76 = 529.36 : x
  2. Step 2: Convert to fraction form
    560.72/835.76 = 529.36/x
  3. Step 3: Cross multiply
    560.72x = 835.76 × 529.36
  4. Step 4: Simplify right side
    560.72x = 442,417.91
  5. Step 5: Solve for x
    x = 442,417.91/560.72
  6. Step 6: Final answer
    x = 789.02

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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.