Home / 1,278,928.80-1,918,393.38-648,023.04

Finding the Fourth Proportional to 1,278,928.80, 1,918,393.38 and 648,023.04

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Solution

The fourth proportional to 1,278,928.80, 1,918,393.38 and 648,023.04 is: 972,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,928.80 : 1,918,393.38 = 648,023.04 : x
  2. Step 2: Convert to fraction form
    1,278,928.80/1,918,393.38 = 648,023.04/x
  3. Step 3: Cross multiply
    1,278,928.80x = 1,918,393.38 × 648,023.04
  4. Step 4: Simplify right side
    1,278,928.80x = 1,243,163,110,023.48
  5. Step 5: Solve for x
    x = 1,243,163,110,023.48/1,278,928.80
  6. Step 6: Final answer
    x = 972,034.65

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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.