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Finding the Fourth Proportional to 934.18, 1,403.02 and 852.63

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Solution

The fourth proportional to 934.18, 1,403.02 and 852.63 is: 1,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.18 : 1,403.02 = 852.63 : x
  2. Step 2: Convert to fraction form
    934.18/1,403.02 = 852.63/x
  3. Step 3: Cross multiply
    934.18x = 1,403.02 × 852.63
  4. Step 4: Simplify right side
    934.18x = 1,196,252.75
  5. Step 5: Solve for x
    x = 1,196,252.75/934.18
  6. Step 6: Final answer
    x = 1,280.53

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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.