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Finding the Fourth Proportional to 618,134.85, 927,061.94 and 218,775.44

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Solution

The fourth proportional to 618,134.85, 927,061.94 and 218,775.44 is: 328,113.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,134.85 : 927,061.94 = 218,775.44 : x
  2. Step 2: Convert to fraction form
    618,134.85/927,061.94 = 218,775.44/x
  3. Step 3: Cross multiply
    618,134.85x = 927,061.94 × 218,775.44
  4. Step 4: Simplify right side
    618,134.85x = 202,818,381,480.62
  5. Step 5: Solve for x
    x = 202,818,381,480.62/618,134.85
  6. Step 6: Final answer
    x = 328,113.49

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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.