Home / 1,439,938.80-2,154,659.40-1,313,967.60

Finding the Fourth Proportional to 1,439,938.80, 2,154,659.40 and 1,313,967.60

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Solution

The fourth proportional to 1,439,938.80, 2,154,659.40 and 1,313,967.60 is: 1,966,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,938.80 : 2,154,659.40 = 1,313,967.60 : x
  2. Step 2: Convert to fraction form
    1,439,938.80/2,154,659.40 = 1,313,967.60/x
  3. Step 3: Cross multiply
    1,439,938.80x = 2,154,659.40 × 1,313,967.60
  4. Step 4: Simplify right side
    1,439,938.80x = 2,831,152,640,635.44
  5. Step 5: Solve for x
    x = 2,831,152,640,635.44/1,439,938.80
  6. Step 6: Final answer
    x = 1,966,161.78

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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.