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Finding the Fourth Proportional to 555,221.54, 766,205.99 and 300,572.73

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Solution

The fourth proportional to 555,221.54, 766,205.99 and 300,572.73 is: 414,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,221.54 : 766,205.99 = 300,572.73 : x
  2. Step 2: Convert to fraction form
    555,221.54/766,205.99 = 300,572.73/x
  3. Step 3: Cross multiply
    555,221.54x = 766,205.99 × 300,572.73
  4. Step 4: Simplify right side
    555,221.54x = 230,300,624,653.79
  5. Step 5: Solve for x
    x = 230,300,624,653.79/555,221.54
  6. Step 6: Final answer
    x = 414,790.51

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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.