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Finding the Fourth Proportional to 484,426.40, 726,553.20 and 306,615.20

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Solution

The fourth proportional to 484,426.40, 726,553.20 and 306,615.20 is: 459,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,426.40 : 726,553.20 = 306,615.20 : x
  2. Step 2: Convert to fraction form
    484,426.40/726,553.20 = 306,615.20/x
  3. Step 3: Cross multiply
    484,426.40x = 726,553.20 × 306,615.20
  4. Step 4: Simplify right side
    484,426.40x = 222,772,254,728.64
  5. Step 5: Solve for x
    x = 222,772,254,728.64/484,426.40
  6. Step 6: Final answer
    x = 459,868.11

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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.