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Finding the Fourth Proportional to 511,073.70, 766,610.55 and 461,307.30

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Solution

The fourth proportional to 511,073.70, 766,610.55 and 461,307.30 is: 691,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,073.70 : 766,610.55 = 461,307.30 : x
  2. Step 2: Convert to fraction form
    511,073.70/766,610.55 = 461,307.30/x
  3. Step 3: Cross multiply
    511,073.70x = 766,610.55 × 461,307.30
  4. Step 4: Simplify right side
    511,073.70x = 353,643,042,972.02
  5. Step 5: Solve for x
    x = 353,643,042,972.02/511,073.70
  6. Step 6: Final answer
    x = 691,960.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.