Home / 908,775.03-1,361,667.79-720,445.78

Finding the Fourth Proportional to 908,775.03, 1,361,667.79 and 720,445.78

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Solution

The fourth proportional to 908,775.03, 1,361,667.79 and 720,445.78 is: 1,079,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,775.03 : 1,361,667.79 = 720,445.78 : x
  2. Step 2: Convert to fraction form
    908,775.03/1,361,667.79 = 720,445.78/x
  3. Step 3: Cross multiply
    908,775.03x = 1,361,667.79 × 720,445.78
  4. Step 4: Simplify right side
    908,775.03x = 981,007,813,067.43
  5. Step 5: Solve for x
    x = 981,007,813,067.43/908,775.03
  6. Step 6: Final answer
    x = 1,079,483.68

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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.