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Finding the Fourth Proportional to 546.76, 755.10 and 472.72

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Solution

The fourth proportional to 546.76, 755.10 and 472.72 is: 652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.76 : 755.10 = 472.72 : x
  2. Step 2: Convert to fraction form
    546.76/755.10 = 472.72/x
  3. Step 3: Cross multiply
    546.76x = 755.10 × 472.72
  4. Step 4: Simplify right side
    546.76x = 356,950.87
  5. Step 5: Solve for x
    x = 356,950.87/546.76
  6. Step 6: Final answer
    x = 652.85

Related Problems

Find fourth proportional to 273.38, 377.55 and 236.36
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Double scale
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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.