Home / 712,078.95-1,067,380.29-445,226.67

Finding the Fourth Proportional to 712,078.95, 1,067,380.29 and 445,226.67

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Solution

The fourth proportional to 712,078.95, 1,067,380.29 and 445,226.67 is: 667,378.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,078.95 : 1,067,380.29 = 445,226.67 : x
  2. Step 2: Convert to fraction form
    712,078.95/1,067,380.29 = 445,226.67/x
  3. Step 3: Cross multiply
    712,078.95x = 1,067,380.29 × 445,226.67
  4. Step 4: Simplify right side
    712,078.95x = 475,226,172,140.33
  5. Step 5: Solve for x
    x = 475,226,172,140.33/712,078.95
  6. Step 6: Final answer
    x = 667,378.49

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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.