Home / 1,288,198.80-1,932,298.20-1,258,674.30

Finding the Fourth Proportional to 1,288,198.80, 1,932,298.20 and 1,258,674.30

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Solution

The fourth proportional to 1,288,198.80, 1,932,298.20 and 1,258,674.30 is: 1,888,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,198.80 : 1,932,298.20 = 1,258,674.30 : x
  2. Step 2: Convert to fraction form
    1,288,198.80/1,932,298.20 = 1,258,674.30/x
  3. Step 3: Cross multiply
    1,288,198.80x = 1,932,298.20 × 1,258,674.30
  4. Step 4: Simplify right side
    1,288,198.80x = 2,432,134,084,276.26
  5. Step 5: Solve for x
    x = 2,432,134,084,276.26/1,288,198.80
  6. Step 6: Final answer
    x = 1,888,011.45

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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.