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Finding the Fourth Proportional to 934.60, 1,288.02 and 701.32

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Solution

The fourth proportional to 934.60, 1,288.02 and 701.32 is: 966.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.60 : 1,288.02 = 701.32 : x
  2. Step 2: Convert to fraction form
    934.60/1,288.02 = 701.32/x
  3. Step 3: Cross multiply
    934.60x = 1,288.02 × 701.32
  4. Step 4: Simplify right side
    934.60x = 903,314.19
  5. Step 5: Solve for x
    x = 903,314.19/934.60
  6. Step 6: Final answer
    x = 966.52

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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.