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Finding the Fourth Proportional to 555,771.12, 766,959.12 and 301,121.52

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Solution

The fourth proportional to 555,771.12, 766,959.12 and 301,121.52 is: 415,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,771.12 : 766,959.12 = 301,121.52 : x
  2. Step 2: Convert to fraction form
    555,771.12/766,959.12 = 301,121.52/x
  3. Step 3: Cross multiply
    555,771.12x = 766,959.12 × 301,121.52
  4. Step 4: Simplify right side
    555,771.12x = 230,947,895,992.26
  5. Step 5: Solve for x
    x = 230,947,895,992.26/555,771.12
  6. Step 6: Final answer
    x = 415,544.97

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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.