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Finding the Fourth Proportional to 1,542.32, 2,313.53 and 446.74

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Solution

The fourth proportional to 1,542.32, 2,313.53 and 446.74 is: 670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.32 : 2,313.53 = 446.74 : x
  2. Step 2: Convert to fraction form
    1,542.32/2,313.53 = 446.74/x
  3. Step 3: Cross multiply
    1,542.32x = 2,313.53 × 446.74
  4. Step 4: Simplify right side
    1,542.32x = 1,033,546.39
  5. Step 5: Solve for x
    x = 1,033,546.39/1,542.32
  6. Step 6: Final answer
    x = 670.12

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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.