Home / 1,384,479.46-1,910,583.21-780,867.46

Finding the Fourth Proportional to 1,384,479.46, 1,910,583.21 and 780,867.46

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Solution

The fourth proportional to 1,384,479.46, 1,910,583.21 and 780,867.46 is: 1,077,597.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,479.46 : 1,910,583.21 = 780,867.46 : x
  2. Step 2: Convert to fraction form
    1,384,479.46/1,910,583.21 = 780,867.46/x
  3. Step 3: Cross multiply
    1,384,479.46x = 1,910,583.21 × 780,867.46
  4. Step 4: Simplify right side
    1,384,479.46x = 1,491,912,258,311.35
  5. Step 5: Solve for x
    x = 1,491,912,258,311.35/1,384,479.46
  6. Step 6: Final answer
    x = 1,077,597.97

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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.