Home / 1,270,086.20-1,752,712.80-697,136.12

Finding the Fourth Proportional to 1,270,086.20, 1,752,712.80 and 697,136.12

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Solution

The fourth proportional to 1,270,086.20, 1,752,712.80 and 697,136.12 is: 962,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,086.20 : 1,752,712.80 = 697,136.12 : x
  2. Step 2: Convert to fraction form
    1,270,086.20/1,752,712.80 = 697,136.12/x
  3. Step 3: Cross multiply
    1,270,086.20x = 1,752,712.80 × 697,136.12
  4. Step 4: Simplify right side
    1,270,086.20x = 1,221,879,400,866.34
  5. Step 5: Solve for x
    x = 1,221,879,400,866.34/1,270,086.20
  6. Step 6: Final answer
    x = 962,044.47

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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.