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Finding the Fourth Proportional to 615.54, 847.49 and 584.76

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Solution

The fourth proportional to 615.54, 847.49 and 584.76 is: 805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.54 : 847.49 = 584.76 : x
  2. Step 2: Convert to fraction form
    615.54/847.49 = 584.76/x
  3. Step 3: Cross multiply
    615.54x = 847.49 × 584.76
  4. Step 4: Simplify right side
    615.54x = 495,575.33
  5. Step 5: Solve for x
    x = 495,575.33/615.54
  6. Step 6: Final answer
    x = 805.11

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1.5x scale

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.