Home / 1,278,080.80-1,763,689.81-697,269.49

Finding the Fourth Proportional to 1,278,080.80, 1,763,689.81 and 697,269.49

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Solution

The fourth proportional to 1,278,080.80, 1,763,689.81 and 697,269.49 is: 962,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,080.80 : 1,763,689.81 = 697,269.49 : x
  2. Step 2: Convert to fraction form
    1,278,080.80/1,763,689.81 = 697,269.49/x
  3. Step 3: Cross multiply
    1,278,080.80x = 1,763,689.81 × 697,269.49
  4. Step 4: Simplify right side
    1,278,080.80x = 1,229,767,094,336.90
  5. Step 5: Solve for x
    x = 1,229,767,094,336.90/1,278,080.80
  6. Step 6: Final answer
    x = 962,198.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.