Home / 2,015,399.91-2,778,010.32-1,361,821.89

Finding the Fourth Proportional to 2,015,399.91, 2,778,010.32 and 1,361,821.89

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Solution

The fourth proportional to 2,015,399.91, 2,778,010.32 and 1,361,821.89 is: 1,877,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015,399.91 : 2,778,010.32 = 1,361,821.89 : x
  2. Step 2: Convert to fraction form
    2,015,399.91/2,778,010.32 = 1,361,821.89/x
  3. Step 3: Cross multiply
    2,015,399.91x = 2,778,010.32 × 1,361,821.89
  4. Step 4: Simplify right side
    2,015,399.91x = 3,783,155,264,421.90
  5. Step 5: Solve for x
    x = 3,783,155,264,421.90/2,015,399.91
  6. Step 6: Final answer
    x = 1,877,123.86

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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.