Home / 2,170,415.79-3,253,697.19-821,638.17

Finding the Fourth Proportional to 2,170,415.79, 3,253,697.19 and 821,638.17

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Solution

The fourth proportional to 2,170,415.79, 3,253,697.19 and 821,638.17 is: 1,231,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170,415.79 : 3,253,697.19 = 821,638.17 : x
  2. Step 2: Convert to fraction form
    2,170,415.79/3,253,697.19 = 821,638.17/x
  3. Step 3: Cross multiply
    2,170,415.79x = 3,253,697.19 × 821,638.17
  4. Step 4: Simplify right side
    2,170,415.79x = 2,673,361,804,925.74
  5. Step 5: Solve for x
    x = 2,673,361,804,925.74/2,170,415.79
  6. Step 6: Final answer
    x = 1,231,727.96

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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.