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Finding the Fourth Proportional to 699.03, 963.50 and 558.71

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Solution

The fourth proportional to 699.03, 963.50 and 558.71 is: 770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.03 : 963.50 = 558.71 : x
  2. Step 2: Convert to fraction form
    699.03/963.50 = 558.71/x
  3. Step 3: Cross multiply
    699.03x = 963.50 × 558.71
  4. Step 4: Simplify right side
    699.03x = 538,309.47
  5. Step 5: Solve for x
    x = 538,309.47/699.03
  6. Step 6: Final answer
    x = 770.08

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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.