Home / 1,433,783.20-2,150,674.80-1,278,954.40

Finding the Fourth Proportional to 1,433,783.20, 2,150,674.80 and 1,278,954.40

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Solution

The fourth proportional to 1,433,783.20, 2,150,674.80 and 1,278,954.40 is: 1,918,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,783.20 : 2,150,674.80 = 1,278,954.40 : x
  2. Step 2: Convert to fraction form
    1,433,783.20/2,150,674.80 = 1,278,954.40/x
  3. Step 3: Cross multiply
    1,433,783.20x = 2,150,674.80 × 1,278,954.40
  4. Step 4: Simplify right side
    1,433,783.20x = 2,750,614,998,429.12
  5. Step 5: Solve for x
    x = 2,750,614,998,429.12/1,433,783.20
  6. Step 6: Final answer
    x = 1,918,431.60

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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.