Home / 1,220,747.16-1,684,804.68-677,003.88

Finding the Fourth Proportional to 1,220,747.16, 1,684,804.68 and 677,003.88

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Solution

The fourth proportional to 1,220,747.16, 1,684,804.68 and 677,003.88 is: 934,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,747.16 : 1,684,804.68 = 677,003.88 : x
  2. Step 2: Convert to fraction form
    1,220,747.16/1,684,804.68 = 677,003.88/x
  3. Step 3: Cross multiply
    1,220,747.16x = 1,684,804.68 × 677,003.88
  4. Step 4: Simplify right side
    1,220,747.16x = 1,140,619,305,402.16
  5. Step 5: Solve for x
    x = 1,140,619,305,402.16/1,220,747.16
  6. Step 6: Final answer
    x = 934,361.63

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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.