Home / 2,124,769.86-3,187,149.66-665,928

Finding the Fourth Proportional to 2,124,769.86, 3,187,149.66 and 665,928

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Solution

The fourth proportional to 2,124,769.86, 3,187,149.66 and 665,928 is: 998,890.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,769.86 : 3,187,149.66 = 665,928 : x
  2. Step 2: Convert to fraction form
    2,124,769.86/3,187,149.66 = 665,928/x
  3. Step 3: Cross multiply
    2,124,769.86x = 3,187,149.66 × 665,928
  4. Step 4: Simplify right side
    2,124,769.86x = 2,122,412,198,784.48
  5. Step 5: Solve for x
    x = 2,122,412,198,784.48/2,124,769.86
  6. Step 6: Final answer
    x = 998,890.39

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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.