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Finding the Fourth Proportional to 708.15, 1,060.53 and 341.76

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Solution

The fourth proportional to 708.15, 1,060.53 and 341.76 is: 511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    708.15 : 1,060.53 = 341.76 : x
  2. Step 2: Convert to fraction form
    708.15/1,060.53 = 341.76/x
  3. Step 3: Cross multiply
    708.15x = 1,060.53 × 341.76
  4. Step 4: Simplify right side
    708.15x = 362,446.73
  5. Step 5: Solve for x
    x = 362,446.73/708.15
  6. Step 6: Final answer
    x = 511.82

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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.