Home / 769,435.40-1,154,176.52-263,989.29

Finding the Fourth Proportional to 769,435.40, 1,154,176.52 and 263,989.29

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Solution

The fourth proportional to 769,435.40, 1,154,176.52 and 263,989.29 is: 395,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,435.40 : 1,154,176.52 = 263,989.29 : x
  2. Step 2: Convert to fraction form
    769,435.40/1,154,176.52 = 263,989.29/x
  3. Step 3: Cross multiply
    769,435.40x = 1,154,176.52 × 263,989.29
  4. Step 4: Simplify right side
    769,435.40x = 304,690,238,729.52
  5. Step 5: Solve for x
    x = 304,690,238,729.52/769,435.40
  6. Step 6: Final answer
    x = 395,991.97

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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.