Home / 2,124,764.73-3,187,770.12-685,419.30

Finding the Fourth Proportional to 2,124,764.73, 3,187,770.12 and 685,419.30

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Solution

The fourth proportional to 2,124,764.73, 3,187,770.12 and 685,419.30 is: 1,028,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,764.73 : 3,187,770.12 = 685,419.30 : x
  2. Step 2: Convert to fraction form
    2,124,764.73/3,187,770.12 = 685,419.30/x
  3. Step 3: Cross multiply
    2,124,764.73x = 3,187,770.12 × 685,419.30
  4. Step 4: Simplify right side
    2,124,764.73x = 2,184,959,164,211.32
  5. Step 5: Solve for x
    x = 2,184,959,164,211.32/2,124,764.73
  6. Step 6: Final answer
    x = 1,028,329.93

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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.