Home / 493,767.90-681,441.66-278,947.40

Finding the Fourth Proportional to 493,767.90, 681,441.66 and 278,947.40

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Solution

The fourth proportional to 493,767.90, 681,441.66 and 278,947.40 is: 384,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,767.90 : 681,441.66 = 278,947.40 : x
  2. Step 2: Convert to fraction form
    493,767.90/681,441.66 = 278,947.40/x
  3. Step 3: Cross multiply
    493,767.90x = 681,441.66 × 278,947.40
  4. Step 4: Simplify right side
    493,767.90x = 190,086,375,901.48
  5. Step 5: Solve for x
    x = 190,086,375,901.48/493,767.90
  6. Step 6: Final answer
    x = 384,971.11

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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.