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Finding the Fourth Proportional to 448,497, 618,204.15 and 327,446.55

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Solution

The fourth proportional to 448,497, 618,204.15 and 327,446.55 is: 451,349.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,497 : 618,204.15 = 327,446.55 : x
  2. Step 2: Convert to fraction form
    448,497/618,204.15 = 327,446.55/x
  3. Step 3: Cross multiply
    448,497x = 618,204.15 × 327,446.55
  4. Step 4: Simplify right side
    448,497x = 202,428,816,113.18
  5. Step 5: Solve for x
    x = 202,428,816,113.18/448,497
  6. Step 6: Final answer
    x = 451,349.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.