Home / 818,799.56-1,228,029.95-219,618.16

Finding the Fourth Proportional to 818,799.56, 1,228,029.95 and 219,618.16

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Solution

The fourth proportional to 818,799.56, 1,228,029.95 and 219,618.16 is: 329,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,799.56 : 1,228,029.95 = 219,618.16 : x
  2. Step 2: Convert to fraction form
    818,799.56/1,228,029.95 = 219,618.16/x
  3. Step 3: Cross multiply
    818,799.56x = 1,228,029.95 × 219,618.16
  4. Step 4: Simplify right side
    818,799.56x = 269,697,670,805.65
  5. Step 5: Solve for x
    x = 269,697,670,805.65/818,799.56
  6. Step 6: Final answer
    x = 329,381.80

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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.