Home / 2,619,345.22-3,929,018.92-1,178,345.49

Finding the Fourth Proportional to 2,619,345.22, 3,929,018.92 and 1,178,345.49

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Solution

The fourth proportional to 2,619,345.22, 3,929,018.92 and 1,178,345.49 is: 1,767,518.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,345.22 : 3,929,018.92 = 1,178,345.49 : x
  2. Step 2: Convert to fraction form
    2,619,345.22/3,929,018.92 = 1,178,345.49/x
  3. Step 3: Cross multiply
    2,619,345.22x = 3,929,018.92 × 1,178,345.49
  4. Step 4: Simplify right side
    2,619,345.22x = 4,629,741,726,162.53
  5. Step 5: Solve for x
    x = 4,629,741,726,162.53/2,619,345.22
  6. Step 6: Final answer
    x = 1,767,518.72

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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.