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Finding the Fourth Proportional to 531.58, 732.86 and 436.70

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Solution

The fourth proportional to 531.58, 732.86 and 436.70 is: 602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.58 : 732.86 = 436.70 : x
  2. Step 2: Convert to fraction form
    531.58/732.86 = 436.70/x
  3. Step 3: Cross multiply
    531.58x = 732.86 × 436.70
  4. Step 4: Simplify right side
    531.58x = 320,039.96
  5. Step 5: Solve for x
    x = 320,039.96/531.58
  6. Step 6: Final answer
    x = 602.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.