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Finding the Fourth Proportional to 744.51, 1,113.93 and 452.10

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Solution

The fourth proportional to 744.51, 1,113.93 and 452.10 is: 676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.51 : 1,113.93 = 452.10 : x
  2. Step 2: Convert to fraction form
    744.51/1,113.93 = 452.10/x
  3. Step 3: Cross multiply
    744.51x = 1,113.93 × 452.10
  4. Step 4: Simplify right side
    744.51x = 503,607.75
  5. Step 5: Solve for x
    x = 503,607.75/744.51
  6. Step 6: Final answer
    x = 676.43

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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.