Home / 2,156,314.86-3,231,724.32-1,145,920.86

Finding the Fourth Proportional to 2,156,314.86, 3,231,724.32 and 1,145,920.86

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Solution

The fourth proportional to 2,156,314.86, 3,231,724.32 and 1,145,920.86 is: 1,717,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,314.86 : 3,231,724.32 = 1,145,920.86 : x
  2. Step 2: Convert to fraction form
    2,156,314.86/3,231,724.32 = 1,145,920.86/x
  3. Step 3: Cross multiply
    2,156,314.86x = 3,231,724.32 × 1,145,920.86
  4. Step 4: Simplify right side
    2,156,314.86x = 3,703,300,312,057.32
  5. Step 5: Solve for x
    x = 3,703,300,312,057.32/2,156,314.86
  6. Step 6: Final answer
    x = 1,717,420.95

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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.