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Finding the Fourth Proportional to 554.37, 763.26 and 471.35

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Solution

The fourth proportional to 554.37, 763.26 and 471.35 is: 648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.37 : 763.26 = 471.35 : x
  2. Step 2: Convert to fraction form
    554.37/763.26 = 471.35/x
  3. Step 3: Cross multiply
    554.37x = 763.26 × 471.35
  4. Step 4: Simplify right side
    554.37x = 359,758.78
  5. Step 5: Solve for x
    x = 359,758.78/554.37
  6. Step 6: Final answer
    x = 648.95

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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.