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Finding the Fourth Proportional to 451,004.39, 676,631.15 and 401,430.90

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Solution

The fourth proportional to 451,004.39, 676,631.15 and 401,430.90 is: 602,257.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,004.39 : 676,631.15 = 401,430.90 : x
  2. Step 2: Convert to fraction form
    451,004.39/676,631.15 = 401,430.90/x
  3. Step 3: Cross multiply
    451,004.39x = 676,631.15 × 401,430.90
  4. Step 4: Simplify right side
    451,004.39x = 271,620,649,505.38
  5. Step 5: Solve for x
    x = 271,620,649,505.38/451,004.39
  6. Step 6: Final answer
    x = 602,257.23

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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.