Home / 2,378,839.78-3,282,715.40-1,291,089.46

Finding the Fourth Proportional to 2,378,839.78, 3,282,715.40 and 1,291,089.46

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Solution

The fourth proportional to 2,378,839.78, 3,282,715.40 and 1,291,089.46 is: 1,781,658.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378,839.78 : 3,282,715.40 = 1,291,089.46 : x
  2. Step 2: Convert to fraction form
    2,378,839.78/3,282,715.40 = 1,291,089.46/x
  3. Step 3: Cross multiply
    2,378,839.78x = 3,282,715.40 × 1,291,089.46
  4. Step 4: Simplify right side
    2,378,839.78x = 4,238,279,253,119.68
  5. Step 5: Solve for x
    x = 4,238,279,253,119.68/2,378,839.78
  6. Step 6: Final answer
    x = 1,781,658.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.