Home / 767,473.80-1,151,451.27-318,406.56

Finding the Fourth Proportional to 767,473.80, 1,151,451.27 and 318,406.56

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Solution

The fourth proportional to 767,473.80, 1,151,451.27 and 318,406.56 is: 477,709.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,473.80 : 1,151,451.27 = 318,406.56 : x
  2. Step 2: Convert to fraction form
    767,473.80/1,151,451.27 = 318,406.56/x
  3. Step 3: Cross multiply
    767,473.80x = 1,151,451.27 × 318,406.56
  4. Step 4: Simplify right side
    767,473.80x = 366,629,637,888.33
  5. Step 5: Solve for x
    x = 366,629,637,888.33/767,473.80
  6. Step 6: Final answer
    x = 477,709.65

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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.