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Finding the Fourth Proportional to 736, 1,015.68 and 456.76

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Solution

The fourth proportional to 736, 1,015.68 and 456.76 is: 630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    736 : 1,015.68 = 456.76 : x
  2. Step 2: Convert to fraction form
    736/1,015.68 = 456.76/x
  3. Step 3: Cross multiply
    736x = 1,015.68 × 456.76
  4. Step 4: Simplify right side
    736x = 463,922.00
  5. Step 5: Solve for x
    x = 463,922.00/736
  6. Step 6: Final answer
    x = 630.33

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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.