Home / 979,748.87-1,469,716.25-380,756.30

Finding the Fourth Proportional to 979,748.87, 1,469,716.25 and 380,756.30

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Solution

The fourth proportional to 979,748.87, 1,469,716.25 and 380,756.30 is: 571,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,748.87 : 1,469,716.25 = 380,756.30 : x
  2. Step 2: Convert to fraction form
    979,748.87/1,469,716.25 = 380,756.30/x
  3. Step 3: Cross multiply
    979,748.87x = 1,469,716.25 × 380,756.30
  4. Step 4: Simplify right side
    979,748.87x = 559,603,712,147.51
  5. Step 5: Solve for x
    x = 559,603,712,147.51/979,748.87
  6. Step 6: Final answer
    x = 571,170.56

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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.