Home / 900,868.78-1,351,025.09-261,219.65

Finding the Fourth Proportional to 900,868.78, 1,351,025.09 and 261,219.65

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Solution

The fourth proportional to 900,868.78, 1,351,025.09 and 261,219.65 is: 391,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,868.78 : 1,351,025.09 = 261,219.65 : x
  2. Step 2: Convert to fraction form
    900,868.78/1,351,025.09 = 261,219.65/x
  3. Step 3: Cross multiply
    900,868.78x = 1,351,025.09 × 261,219.65
  4. Step 4: Simplify right side
    900,868.78x = 352,914,303,222.48
  5. Step 5: Solve for x
    x = 352,914,303,222.48/900,868.78
  6. Step 6: Final answer
    x = 391,748.85

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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.