Home / 878,771.04-1,317,682.24-398,736.88

Finding the Fourth Proportional to 878,771.04, 1,317,682.24 and 398,736.88

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Solution

The fourth proportional to 878,771.04, 1,317,682.24 and 398,736.88 is: 597,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,771.04 : 1,317,682.24 = 398,736.88 : x
  2. Step 2: Convert to fraction form
    878,771.04/1,317,682.24 = 398,736.88/x
  3. Step 3: Cross multiply
    878,771.04x = 1,317,682.24 × 398,736.88
  4. Step 4: Simplify right side
    878,771.04x = 525,408,505,209.01
  5. Step 5: Solve for x
    x = 525,408,505,209.01/878,771.04
  6. Step 6: Final answer
    x = 597,890.10

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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.