Home / 3,783,854.22-5,672,406.30-1,387,139.28

Finding the Fourth Proportional to 3,783,854.22, 5,672,406.30 and 1,387,139.28

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Solution

The fourth proportional to 3,783,854.22, 5,672,406.30 and 1,387,139.28 is: 2,079,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783,854.22 : 5,672,406.30 = 1,387,139.28 : x
  2. Step 2: Convert to fraction form
    3,783,854.22/5,672,406.30 = 1,387,139.28/x
  3. Step 3: Cross multiply
    3,783,854.22x = 5,672,406.30 × 1,387,139.28
  4. Step 4: Simplify right side
    3,783,854.22x = 7,868,417,590,849.46
  5. Step 5: Solve for x
    x = 7,868,417,590,849.46/3,783,854.22
  6. Step 6: Final answer
    x = 2,079,471.65

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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.