Home / 555,209.20-766,191.09-300,560.38

Finding the Fourth Proportional to 555,209.20, 766,191.09 and 300,560.38

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Solution

The fourth proportional to 555,209.20, 766,191.09 and 300,560.38 is: 414,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,209.20 : 766,191.09 = 300,560.38 : x
  2. Step 2: Convert to fraction form
    555,209.20/766,191.09 = 300,560.38/x
  3. Step 3: Cross multiply
    555,209.20x = 766,191.09 × 300,560.38
  4. Step 4: Simplify right side
    555,209.20x = 230,286,685,163.01
  5. Step 5: Solve for x
    x = 230,286,685,163.01/555,209.20
  6. Step 6: Final answer
    x = 414,774.62

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1.5x scale

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.