Home / 868,889.76-1,303,514.40-419,923.04

Finding the Fourth Proportional to 868,889.76, 1,303,514.40 and 419,923.04

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Solution

The fourth proportional to 868,889.76, 1,303,514.40 and 419,923.04 is: 629,971.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,889.76 : 1,303,514.40 = 419,923.04 : x
  2. Step 2: Convert to fraction form
    868,889.76/1,303,514.40 = 419,923.04/x
  3. Step 3: Cross multiply
    868,889.76x = 1,303,514.40 × 419,923.04
  4. Step 4: Simplify right side
    868,889.76x = 547,375,729,531.78
  5. Step 5: Solve for x
    x = 547,375,729,531.78/868,889.76
  6. Step 6: Final answer
    x = 629,971.44

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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.