Home / 771,847.92-1,157,736.24-210,880.80

Finding the Fourth Proportional to 771,847.92, 1,157,736.24 and 210,880.80

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Solution

The fourth proportional to 771,847.92, 1,157,736.24 and 210,880.80 is: 316,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,847.92 : 1,157,736.24 = 210,880.80 : x
  2. Step 2: Convert to fraction form
    771,847.92/1,157,736.24 = 210,880.80/x
  3. Step 3: Cross multiply
    771,847.92x = 1,157,736.24 × 210,880.80
  4. Step 4: Simplify right side
    771,847.92x = 244,144,344,480.19
  5. Step 5: Solve for x
    x = 244,144,344,480.19/771,847.92
  6. Step 6: Final answer
    x = 316,311.46

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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.