Home / 787,428.75-1,181,330.85-254,949.94

Finding the Fourth Proportional to 787,428.75, 1,181,330.85 and 254,949.94

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Solution

The fourth proportional to 787,428.75, 1,181,330.85 and 254,949.94 is: 382,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,428.75 : 1,181,330.85 = 254,949.94 : x
  2. Step 2: Convert to fraction form
    787,428.75/1,181,330.85 = 254,949.94/x
  3. Step 3: Cross multiply
    787,428.75x = 1,181,330.85 × 254,949.94
  4. Step 4: Simplify right side
    787,428.75x = 301,180,229,327.65
  5. Step 5: Solve for x
    x = 301,180,229,327.65/787,428.75
  6. Step 6: Final answer
    x = 382,485.69

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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.