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Finding the Fourth Proportional to 532.56, 800.76 and 436.56

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Solution

The fourth proportional to 532.56, 800.76 and 436.56 is: 656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.56 : 800.76 = 436.56 : x
  2. Step 2: Convert to fraction form
    532.56/800.76 = 436.56/x
  3. Step 3: Cross multiply
    532.56x = 800.76 × 436.56
  4. Step 4: Simplify right side
    532.56x = 349,579.79
  5. Step 5: Solve for x
    x = 349,579.79/532.56
  6. Step 6: Final answer
    x = 656.41

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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.