Home / 1,388,242.80-2,082,364.20-1,335,098.70

Finding the Fourth Proportional to 1,388,242.80, 2,082,364.20 and 1,335,098.70

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Solution

The fourth proportional to 1,388,242.80, 2,082,364.20 and 1,335,098.70 is: 2,002,648.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,242.80 : 2,082,364.20 = 1,335,098.70 : x
  2. Step 2: Convert to fraction form
    1,388,242.80/2,082,364.20 = 1,335,098.70/x
  3. Step 3: Cross multiply
    1,388,242.80x = 2,082,364.20 × 1,335,098.70
  4. Step 4: Simplify right side
    1,388,242.80x = 2,780,161,736,346.54
  5. Step 5: Solve for x
    x = 2,780,161,736,346.54/1,388,242.80
  6. Step 6: Final answer
    x = 2,002,648.05

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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.