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Finding the Fourth Proportional to 555,449.70, 766,514.34 and 325,965.97

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Solution

The fourth proportional to 555,449.70, 766,514.34 and 325,965.97 is: 449,829.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,449.70 : 766,514.34 = 325,965.97 : x
  2. Step 2: Convert to fraction form
    555,449.70/766,514.34 = 325,965.97/x
  3. Step 3: Cross multiply
    555,449.70x = 766,514.34 × 325,965.97
  4. Step 4: Simplify right side
    555,449.70x = 249,857,591,315.15
  5. Step 5: Solve for x
    x = 249,857,591,315.15/555,449.70
  6. Step 6: Final answer
    x = 449,829.37

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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.