Home / 555,209.22-766,191.18-300,560.40

Finding the Fourth Proportional to 555,209.22, 766,191.18 and 300,560.40

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Solution

The fourth proportional to 555,209.22, 766,191.18 and 300,560.40 is: 414,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,209.22 : 766,191.18 = 300,560.40 : x
  2. Step 2: Convert to fraction form
    555,209.22/766,191.18 = 300,560.40/x
  3. Step 3: Cross multiply
    555,209.22x = 766,191.18 × 300,560.40
  4. Step 4: Simplify right side
    555,209.22x = 230,286,727,537.27
  5. Step 5: Solve for x
    x = 230,286,727,537.27/555,209.22
  6. Step 6: Final answer
    x = 414,774.68

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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.