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Finding the Fourth Proportional to 408,707.40, 613,061.10 and 363,606.60

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Solution

The fourth proportional to 408,707.40, 613,061.10 and 363,606.60 is: 545,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,707.40 : 613,061.10 = 363,606.60 : x
  2. Step 2: Convert to fraction form
    408,707.40/613,061.10 = 363,606.60/x
  3. Step 3: Cross multiply
    408,707.40x = 613,061.10 × 363,606.60
  4. Step 4: Simplify right side
    408,707.40x = 222,913,062,163.26
  5. Step 5: Solve for x
    x = 222,913,062,163.26/408,707.40
  6. Step 6: Final answer
    x = 545,409.90

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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.