Home / 918,922.05-1,378,469.51-270,498.66

Finding the Fourth Proportional to 918,922.05, 1,378,469.51 and 270,498.66

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Solution

The fourth proportional to 918,922.05, 1,378,469.51 and 270,498.66 is: 405,773.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,922.05 : 1,378,469.51 = 270,498.66 : x
  2. Step 2: Convert to fraction form
    918,922.05/1,378,469.51 = 270,498.66/x
  3. Step 3: Cross multiply
    918,922.05x = 1,378,469.51 × 270,498.66
  4. Step 4: Simplify right side
    918,922.05x = 372,874,153,953.36
  5. Step 5: Solve for x
    x = 372,874,153,953.36/918,922.05
  6. Step 6: Final answer
    x = 405,773.43

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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.