Home / 448,324.62-618,337.98-287,194.65

Finding the Fourth Proportional to 448,324.62, 618,337.98 and 287,194.65

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Solution

The fourth proportional to 448,324.62, 618,337.98 and 287,194.65 is: 396,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,324.62 : 618,337.98 = 287,194.65 : x
  2. Step 2: Convert to fraction form
    448,324.62/618,337.98 = 287,194.65/x
  3. Step 3: Cross multiply
    448,324.62x = 618,337.98 × 287,194.65
  4. Step 4: Simplify right side
    448,324.62x = 177,583,359,747.81
  5. Step 5: Solve for x
    x = 177,583,359,747.81/448,324.62
  6. Step 6: Final answer
    x = 396,104.41

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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.