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Finding the Fourth Proportional to 555,240.80, 766,231.34 and 300,591.92

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Solution

The fourth proportional to 555,240.80, 766,231.34 and 300,591.92 is: 414,816.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,240.80 : 766,231.34 = 300,591.92 : x
  2. Step 2: Convert to fraction form
    555,240.80/766,231.34 = 300,591.92/x
  3. Step 3: Cross multiply
    555,240.80x = 766,231.34 × 300,591.92
  4. Step 4: Simplify right side
    555,240.80x = 230,322,949,654.77
  5. Step 5: Solve for x
    x = 230,322,949,654.77/555,240.80
  6. Step 6: Final answer
    x = 414,816.33

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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.