Home / 1,131,719.55-1,697,579.78-278,807.79

Finding the Fourth Proportional to 1,131,719.55, 1,697,579.78 and 278,807.79

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Solution

The fourth proportional to 1,131,719.55, 1,697,579.78 and 278,807.79 is: 418,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,719.55 : 1,697,579.78 = 278,807.79 : x
  2. Step 2: Convert to fraction form
    1,131,719.55/1,697,579.78 = 278,807.79/x
  3. Step 3: Cross multiply
    1,131,719.55x = 1,697,579.78 × 278,807.79
  4. Step 4: Simplify right side
    1,131,719.55x = 473,298,464,193.87
  5. Step 5: Solve for x
    x = 473,298,464,193.87/1,131,719.55
  6. Step 6: Final answer
    x = 418,211.80

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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.