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Finding the Fourth Proportional to 484,305.80, 726,113.10 and 217,848.20

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Solution

The fourth proportional to 484,305.80, 726,113.10 and 217,848.20 is: 326,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,305.80 : 726,113.10 = 217,848.20 : x
  2. Step 2: Convert to fraction form
    484,305.80/726,113.10 = 217,848.20/x
  3. Step 3: Cross multiply
    484,305.80x = 726,113.10 × 217,848.20
  4. Step 4: Simplify right side
    484,305.80x = 158,182,431,831.42
  5. Step 5: Solve for x
    x = 158,182,431,831.42/484,305.80
  6. Step 6: Final answer
    x = 326,616.84

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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.