Home / 1,387,044.04-2,080,604.94-677,639.56

Finding the Fourth Proportional to 1,387,044.04, 2,080,604.94 and 677,639.56

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Solution

The fourth proportional to 1,387,044.04, 2,080,604.94 and 677,639.56 is: 1,016,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,044.04 : 2,080,604.94 = 677,639.56 : x
  2. Step 2: Convert to fraction form
    1,387,044.04/2,080,604.94 = 677,639.56/x
  3. Step 3: Cross multiply
    1,387,044.04x = 2,080,604.94 × 677,639.56
  4. Step 4: Simplify right side
    1,387,044.04x = 1,409,900,216,075.43
  5. Step 5: Solve for x
    x = 1,409,900,216,075.43/1,387,044.04
  6. Step 6: Final answer
    x = 1,016,478.33

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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.