Home / 1,167,900.80-1,749,086.40-720,003.20

Finding the Fourth Proportional to 1,167,900.80, 1,749,086.40 and 720,003.20

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Solution

The fourth proportional to 1,167,900.80, 1,749,086.40 and 720,003.20 is: 1,078,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,900.80 : 1,749,086.40 = 720,003.20 : x
  2. Step 2: Convert to fraction form
    1,167,900.80/1,749,086.40 = 720,003.20/x
  3. Step 3: Cross multiply
    1,167,900.80x = 1,749,086.40 × 720,003.20
  4. Step 4: Simplify right side
    1,167,900.80x = 1,259,347,805,076.48
  5. Step 5: Solve for x
    x = 1,259,347,805,076.48/1,167,900.80
  6. Step 6: Final answer
    x = 1,078,300.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.