Home / 1,138,169.98-1,571,406.78-730,447.57

Finding the Fourth Proportional to 1,138,169.98, 1,571,406.78 and 730,447.57

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Solution

The fourth proportional to 1,138,169.98, 1,571,406.78 and 730,447.57 is: 1,008,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,169.98 : 1,571,406.78 = 730,447.57 : x
  2. Step 2: Convert to fraction form
    1,138,169.98/1,571,406.78 = 730,447.57/x
  3. Step 3: Cross multiply
    1,138,169.98x = 1,571,406.78 × 730,447.57
  4. Step 4: Simplify right side
    1,138,169.98x = 1,147,830,263,932.52
  5. Step 5: Solve for x
    x = 1,147,830,263,932.52/1,138,169.98
  6. Step 6: Final answer
    x = 1,008,487.56

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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.