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Finding the Fourth Proportional to 484,333.42, 726,492.82 and 217,905.79

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Solution

The fourth proportional to 484,333.42, 726,492.82 and 217,905.79 is: 326,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,333.42 : 726,492.82 = 217,905.79 : x
  2. Step 2: Convert to fraction form
    484,333.42/726,492.82 = 217,905.79/x
  3. Step 3: Cross multiply
    484,333.42x = 726,492.82 × 217,905.79
  4. Step 4: Simplify right side
    484,333.42x = 158,306,991,871.43
  5. Step 5: Solve for x
    x = 158,306,991,871.43/484,333.42
  6. Step 6: Final answer
    x = 326,855.40

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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.