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Finding the Fourth Proportional to 484,478.76, 726,718.40 and 217,927.89

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Solution

The fourth proportional to 484,478.76, 726,718.40 and 217,927.89 is: 326,891.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,478.76 : 726,718.40 = 217,927.89 : x
  2. Step 2: Convert to fraction form
    484,478.76/726,718.40 = 217,927.89/x
  3. Step 3: Cross multiply
    484,478.76x = 726,718.40 × 217,927.89
  4. Step 4: Simplify right side
    484,478.76x = 158,372,205,168.59
  5. Step 5: Solve for x
    x = 158,372,205,168.59/484,478.76
  6. Step 6: Final answer
    x = 326,891.95

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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.