Home / 1,270,980.65-1,753,946.46-690,198.60

Finding the Fourth Proportional to 1,270,980.65, 1,753,946.46 and 690,198.60

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Solution

The fourth proportional to 1,270,980.65, 1,753,946.46 and 690,198.60 is: 952,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,980.65 : 1,753,946.46 = 690,198.60 : x
  2. Step 2: Convert to fraction form
    1,270,980.65/1,753,946.46 = 690,198.60/x
  3. Step 3: Cross multiply
    1,270,980.65x = 1,753,946.46 × 690,198.60
  4. Step 4: Simplify right side
    1,270,980.65x = 1,210,571,397,744.26
  5. Step 5: Solve for x
    x = 1,210,571,397,744.26/1,270,980.65
  6. Step 6: Final answer
    x = 952,470.36

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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.