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Finding the Fourth Proportional to 447,559.80, 673,789.62 and 408,368.76

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Solution

The fourth proportional to 447,559.80, 673,789.62 and 408,368.76 is: 614,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,559.80 : 673,789.62 = 408,368.76 : x
  2. Step 2: Convert to fraction form
    447,559.80/673,789.62 = 408,368.76/x
  3. Step 3: Cross multiply
    447,559.80x = 673,789.62 × 408,368.76
  4. Step 4: Simplify right side
    447,559.80x = 275,154,631,620.27
  5. Step 5: Solve for x
    x = 275,154,631,620.27/447,559.80
  6. Step 6: Final answer
    x = 614,788.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.