Home / 878,195.28-1,211,893.74-496,213.86

Finding the Fourth Proportional to 878,195.28, 1,211,893.74 and 496,213.86

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Solution

The fourth proportional to 878,195.28, 1,211,893.74 and 496,213.86 is: 684,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,195.28 : 1,211,893.74 = 496,213.86 : x
  2. Step 2: Convert to fraction form
    878,195.28/1,211,893.74 = 496,213.86/x
  3. Step 3: Cross multiply
    878,195.28x = 1,211,893.74 × 496,213.86
  4. Step 4: Simplify right side
    878,195.28x = 601,358,470,635.24
  5. Step 5: Solve for x
    x = 601,358,470,635.24/878,195.28
  6. Step 6: Final answer
    x = 684,766.23

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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.