Home / 787,137.66-1,181,580.57-407,956.86

Finding the Fourth Proportional to 787,137.66, 1,181,580.57 and 407,956.86

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Solution

The fourth proportional to 787,137.66, 1,181,580.57 and 407,956.86 is: 612,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,137.66 : 1,181,580.57 = 407,956.86 : x
  2. Step 2: Convert to fraction form
    787,137.66/1,181,580.57 = 407,956.86/x
  3. Step 3: Cross multiply
    787,137.66x = 1,181,580.57 × 407,956.86
  4. Step 4: Simplify right side
    787,137.66x = 482,033,899,174.21
  5. Step 5: Solve for x
    x = 482,033,899,174.21/787,137.66
  6. Step 6: Final answer
    x = 612,388.31

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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.