Home / 2,938,409.60-4,407,614.40-1,986,627.20

Finding the Fourth Proportional to 2,938,409.60, 4,407,614.40 and 1,986,627.20

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Solution

The fourth proportional to 2,938,409.60, 4,407,614.40 and 1,986,627.20 is: 2,979,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938,409.60 : 4,407,614.40 = 1,986,627.20 : x
  2. Step 2: Convert to fraction form
    2,938,409.60/4,407,614.40 = 1,986,627.20/x
  3. Step 3: Cross multiply
    2,938,409.60x = 4,407,614.40 × 1,986,627.20
  4. Step 4: Simplify right side
    2,938,409.60x = 8,756,286,654,151.68
  5. Step 5: Solve for x
    x = 8,756,286,654,151.68/2,938,409.60
  6. Step 6: Final answer
    x = 2,979,940.80

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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.