Home / 918,922.29-1,378,469.86-270,498.90

Finding the Fourth Proportional to 918,922.29, 1,378,469.86 and 270,498.90

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Solution

The fourth proportional to 918,922.29, 1,378,469.86 and 270,498.90 is: 405,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,922.29 : 1,378,469.86 = 270,498.90 : x
  2. Step 2: Convert to fraction form
    918,922.29/1,378,469.86 = 270,498.90/x
  3. Step 3: Cross multiply
    918,922.29x = 1,378,469.86 × 270,498.90
  4. Step 4: Simplify right side
    918,922.29x = 372,874,584,935.58
  5. Step 5: Solve for x
    x = 372,874,584,935.58/918,922.29
  6. Step 6: Final answer
    x = 405,773.80

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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.