Home / 1,386,912.80-2,077,258.80-1,138,080.80

Finding the Fourth Proportional to 1,386,912.80, 2,077,258.80 and 1,138,080.80

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Solution

The fourth proportional to 1,386,912.80, 2,077,258.80 and 1,138,080.80 is: 1,704,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,912.80 : 2,077,258.80 = 1,138,080.80 : x
  2. Step 2: Convert to fraction form
    1,386,912.80/2,077,258.80 = 1,138,080.80/x
  3. Step 3: Cross multiply
    1,386,912.80x = 2,077,258.80 × 1,138,080.80
  4. Step 4: Simplify right side
    1,386,912.80x = 2,364,088,356,911.04
  5. Step 5: Solve for x
    x = 2,364,088,356,911.04/1,386,912.80
  6. Step 6: Final answer
    x = 1,704,568.85

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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.