Home / 1,270,138.73-1,752,811.31-697,231.13

Finding the Fourth Proportional to 1,270,138.73, 1,752,811.31 and 697,231.13

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Solution

The fourth proportional to 1,270,138.73, 1,752,811.31 and 697,231.13 is: 962,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,138.73 : 1,752,811.31 = 697,231.13 : x
  2. Step 2: Convert to fraction form
    1,270,138.73/1,752,811.31 = 697,231.13/x
  3. Step 3: Cross multiply
    1,270,138.73x = 1,752,811.31 × 697,231.13
  4. Step 4: Simplify right side
    1,270,138.73x = 1,222,114,603,327.10
  5. Step 5: Solve for x
    x = 1,222,114,603,327.10/1,270,138.73
  6. Step 6: Final answer
    x = 962,189.86

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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.