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Finding the Fourth Proportional to 618,652.26, 927,978.86 and 169,376.85

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Solution

The fourth proportional to 618,652.26, 927,978.86 and 169,376.85 is: 254,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,652.26 : 927,978.86 = 169,376.85 : x
  2. Step 2: Convert to fraction form
    618,652.26/927,978.86 = 169,376.85/x
  3. Step 3: Cross multiply
    618,652.26x = 927,978.86 × 169,376.85
  4. Step 4: Simplify right side
    618,652.26x = 157,178,135,326.51
  5. Step 5: Solve for x
    x = 157,178,135,326.51/618,652.26
  6. Step 6: Final answer
    x = 254,065.40

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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.