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Finding the Fourth Proportional to 703, 966.90 and 615.52

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Solution

The fourth proportional to 703, 966.90 and 615.52 is: 846.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    703 : 966.90 = 615.52 : x
  2. Step 2: Convert to fraction form
    703/966.90 = 615.52/x
  3. Step 3: Cross multiply
    703x = 966.90 × 615.52
  4. Step 4: Simplify right side
    703x = 595,146.29
  5. Step 5: Solve for x
    x = 595,146.29/703
  6. Step 6: Final answer
    x = 846.58

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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.