Home / 1,386,626.80-2,080,231.80-787,097.20

Finding the Fourth Proportional to 1,386,626.80, 2,080,231.80 and 787,097.20

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Solution

The fourth proportional to 1,386,626.80, 2,080,231.80 and 787,097.20 is: 1,180,811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,626.80 : 2,080,231.80 = 787,097.20 : x
  2. Step 2: Convert to fraction form
    1,386,626.80/2,080,231.80 = 787,097.20/x
  3. Step 3: Cross multiply
    1,386,626.80x = 2,080,231.80 × 787,097.20
  4. Step 4: Simplify right side
    1,386,626.80x = 1,637,344,625,130.96
  5. Step 5: Solve for x
    x = 1,637,344,625,130.96/1,386,626.80
  6. Step 6: Final answer
    x = 1,180,811.32

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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.