Home / 1,388,605.20-2,082,888.36-547,164.24

Finding the Fourth Proportional to 1,388,605.20, 2,082,888.36 and 547,164.24

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Solution

The fourth proportional to 1,388,605.20, 2,082,888.36 and 547,164.24 is: 820,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,605.20 : 2,082,888.36 = 547,164.24 : x
  2. Step 2: Convert to fraction form
    1,388,605.20/2,082,888.36 = 547,164.24/x
  3. Step 3: Cross multiply
    1,388,605.20x = 2,082,888.36 × 547,164.24
  4. Step 4: Simplify right side
    1,388,605.20x = 1,139,682,026,504.25
  5. Step 5: Solve for x
    x = 1,139,682,026,504.25/1,388,605.20
  6. Step 6: Final answer
    x = 820,738.70

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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.