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Finding the Fourth Proportional to 484,439.62, 726,415.21 and 147,415.63

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Solution

The fourth proportional to 484,439.62, 726,415.21 and 147,415.63 is: 221,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,439.62 : 726,415.21 = 147,415.63 : x
  2. Step 2: Convert to fraction form
    484,439.62/726,415.21 = 147,415.63/x
  3. Step 3: Cross multiply
    484,439.62x = 726,415.21 × 147,415.63
  4. Step 4: Simplify right side
    484,439.62x = 107,084,955,823.73
  5. Step 5: Solve for x
    x = 107,084,955,823.73/484,439.62
  6. Step 6: Final answer
    x = 221,049.13

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1.5x scale

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.