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Finding the Fourth Proportional to 934.59, 1,402.01 and 626.36

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Solution

The fourth proportional to 934.59, 1,402.01 and 626.36 is: 939.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.59 : 1,402.01 = 626.36 : x
  2. Step 2: Convert to fraction form
    934.59/1,402.01 = 626.36/x
  3. Step 3: Cross multiply
    934.59x = 1,402.01 × 626.36
  4. Step 4: Simplify right side
    934.59x = 878,152.84
  5. Step 5: Solve for x
    x = 878,152.84/934.59
  6. Step 6: Final answer
    x = 939.61

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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.