Home / 787,313.66-1,181,157.90-254,834.64

Finding the Fourth Proportional to 787,313.66, 1,181,157.90 and 254,834.64

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Solution

The fourth proportional to 787,313.66, 1,181,157.90 and 254,834.64 is: 382,312.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,313.66 : 1,181,157.90 = 254,834.64 : x
  2. Step 2: Convert to fraction form
    787,313.66/1,181,157.90 = 254,834.64/x
  3. Step 3: Cross multiply
    787,313.66x = 1,181,157.90 × 254,834.64
  4. Step 4: Simplify right side
    787,313.66x = 300,999,947,274.03
  5. Step 5: Solve for x
    x = 300,999,947,274.03/787,313.66
  6. Step 6: Final answer
    x = 382,312.62

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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.