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Finding the Fourth Proportional to 511,049.96, 700,140.95 and 491,895.79

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Solution

The fourth proportional to 511,049.96, 700,140.95 and 491,895.79 is: 673,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,049.96 : 700,140.95 = 491,895.79 : x
  2. Step 2: Convert to fraction form
    511,049.96/700,140.95 = 491,895.79/x
  3. Step 3: Cross multiply
    511,049.96x = 700,140.95 × 491,895.79
  4. Step 4: Simplify right side
    511,049.96x = 344,396,385,711.60
  5. Step 5: Solve for x
    x = 344,396,385,711.60/511,049.96
  6. Step 6: Final answer
    x = 673,899.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.