Home / 499,554.18-689,383.31-270,109.85

Finding the Fourth Proportional to 499,554.18, 689,383.31 and 270,109.85

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Solution

The fourth proportional to 499,554.18, 689,383.31 and 270,109.85 is: 372,750.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,554.18 : 689,383.31 = 270,109.85 : x
  2. Step 2: Convert to fraction form
    499,554.18/689,383.31 = 270,109.85/x
  3. Step 3: Cross multiply
    499,554.18x = 689,383.31 × 270,109.85
  4. Step 4: Simplify right side
    499,554.18x = 186,209,217,659.14
  5. Step 5: Solve for x
    x = 186,209,217,659.14/499,554.18
  6. Step 6: Final answer
    x = 372,750.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.