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Finding the Fourth Proportional to 484,089.20, 726,133.80 and 449,097.20

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Solution

The fourth proportional to 484,089.20, 726,133.80 and 449,097.20 is: 673,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,089.20 : 726,133.80 = 449,097.20 : x
  2. Step 2: Convert to fraction form
    484,089.20/726,133.80 = 449,097.20/x
  3. Step 3: Cross multiply
    484,089.20x = 726,133.80 × 449,097.20
  4. Step 4: Simplify right side
    484,089.20x = 326,104,656,405.36
  5. Step 5: Solve for x
    x = 326,104,656,405.36/484,089.20
  6. Step 6: Final answer
    x = 673,645.80

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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.