Home / 1,226,615.40-1,692,729.33-682,739.48

Finding the Fourth Proportional to 1,226,615.40, 1,692,729.33 and 682,739.48

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Solution

The fourth proportional to 1,226,615.40, 1,692,729.33 and 682,739.48 is: 942,180.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,615.40 : 1,692,729.33 = 682,739.48 : x
  2. Step 2: Convert to fraction form
    1,226,615.40/1,692,729.33 = 682,739.48/x
  3. Step 3: Cross multiply
    1,226,615.40x = 1,692,729.33 × 682,739.48
  4. Step 4: Simplify right side
    1,226,615.40x = 1,155,693,142,544.95
  5. Step 5: Solve for x
    x = 1,155,693,142,544.95/1,226,615.40
  6. Step 6: Final answer
    x = 942,180.53

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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.