Home / 1,388,163.34-2,082,491.94-490,126.48

Finding the Fourth Proportional to 1,388,163.34, 2,082,491.94 and 490,126.48

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Solution

The fourth proportional to 1,388,163.34, 2,082,491.94 and 490,126.48 is: 735,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,163.34 : 2,082,491.94 = 490,126.48 : x
  2. Step 2: Convert to fraction form
    1,388,163.34/2,082,491.94 = 490,126.48/x
  3. Step 3: Cross multiply
    1,388,163.34x = 2,082,491.94 × 490,126.48
  4. Step 4: Simplify right side
    1,388,163.34x = 1,020,684,444,180.57
  5. Step 5: Solve for x
    x = 1,020,684,444,180.57/1,388,163.34
  6. Step 6: Final answer
    x = 735,276.90

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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.