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Finding the Fourth Proportional to 732.04, 1,009.94 and 451.79

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Solution

The fourth proportional to 732.04, 1,009.94 and 451.79 is: 623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.04 : 1,009.94 = 451.79 : x
  2. Step 2: Convert to fraction form
    732.04/1,009.94 = 451.79/x
  3. Step 3: Cross multiply
    732.04x = 1,009.94 × 451.79
  4. Step 4: Simplify right side
    732.04x = 456,278.53
  5. Step 5: Solve for x
    x = 456,278.53/732.04
  6. Step 6: Final answer
    x = 623.30

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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.