Home / 1,207,844.28-1,811,719.09-409,125.80

Finding the Fourth Proportional to 1,207,844.28, 1,811,719.09 and 409,125.80

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Solution

The fourth proportional to 1,207,844.28, 1,811,719.09 and 409,125.80 is: 613,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,844.28 : 1,811,719.09 = 409,125.80 : x
  2. Step 2: Convert to fraction form
    1,207,844.28/1,811,719.09 = 409,125.80/x
  3. Step 3: Cross multiply
    1,207,844.28x = 1,811,719.09 × 409,125.80
  4. Step 4: Simplify right side
    1,207,844.28x = 741,221,022,071.52
  5. Step 5: Solve for x
    x = 741,221,022,071.52/1,207,844.28
  6. Step 6: Final answer
    x = 613,672.67

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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.