Home / 712,079.08-1,067,380.47-445,226.80

Finding the Fourth Proportional to 712,079.08, 1,067,380.47 and 445,226.80

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Solution

The fourth proportional to 712,079.08, 1,067,380.47 and 445,226.80 is: 667,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,079.08 : 1,067,380.47 = 445,226.80 : x
  2. Step 2: Convert to fraction form
    712,079.08/1,067,380.47 = 445,226.80/x
  3. Step 3: Cross multiply
    712,079.08x = 1,067,380.47 × 445,226.80
  4. Step 4: Simplify right side
    712,079.08x = 475,226,391,040.60
  5. Step 5: Solve for x
    x = 475,226,391,040.60/712,079.08
  6. Step 6: Final answer
    x = 667,378.67

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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.