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Finding the Fourth Proportional to 555,211.16, 766,191.24 and 300,562.16

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Solution

The fourth proportional to 555,211.16, 766,191.24 and 300,562.16 is: 414,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,211.16 : 766,191.24 = 300,562.16 : x
  2. Step 2: Convert to fraction form
    555,211.16/766,191.24 = 300,562.16/x
  3. Step 3: Cross multiply
    555,211.16x = 766,191.24 × 300,562.16
  4. Step 4: Simplify right side
    555,211.16x = 230,288,094,067.48
  5. Step 5: Solve for x
    x = 230,288,094,067.48/555,211.16
  6. Step 6: Final answer
    x = 414,775.69

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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.