Home / 1,275,235.97-1,759,890.80-723,990.32

Finding the Fourth Proportional to 1,275,235.97, 1,759,890.80 and 723,990.32

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Solution

The fourth proportional to 1,275,235.97, 1,759,890.80 and 723,990.32 is: 999,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,235.97 : 1,759,890.80 = 723,990.32 : x
  2. Step 2: Convert to fraction form
    1,275,235.97/1,759,890.80 = 723,990.32/x
  3. Step 3: Cross multiply
    1,275,235.97x = 1,759,890.80 × 723,990.32
  4. Step 4: Simplify right side
    1,275,235.97x = 1,274,143,891,037.65
  5. Step 5: Solve for x
    x = 1,274,143,891,037.65/1,275,235.97
  6. Step 6: Final answer
    x = 999,143.62

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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.