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Finding the Fourth Proportional to 618,227.38, 927,404 and 213,366.90

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Solution

The fourth proportional to 618,227.38, 927,404 and 213,366.90 is: 320,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,227.38 : 927,404 = 213,366.90 : x
  2. Step 2: Convert to fraction form
    618,227.38/927,404 = 213,366.90/x
  3. Step 3: Cross multiply
    618,227.38x = 927,404 × 213,366.90
  4. Step 4: Simplify right side
    618,227.38x = 197,877,316,527.60
  5. Step 5: Solve for x
    x = 197,877,316,527.60/618,227.38
  6. Step 6: Final answer
    x = 320,072.07

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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.