Home / 1,384,476.96-1,910,579.76-780,864.96

Finding the Fourth Proportional to 1,384,476.96, 1,910,579.76 and 780,864.96

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Solution

The fourth proportional to 1,384,476.96, 1,910,579.76 and 780,864.96 is: 1,077,594.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,476.96 : 1,910,579.76 = 780,864.96 : x
  2. Step 2: Convert to fraction form
    1,384,476.96/1,910,579.76 = 780,864.96/x
  3. Step 3: Cross multiply
    1,384,476.96x = 1,910,579.76 × 780,864.96
  4. Step 4: Simplify right side
    1,384,476.96x = 1,491,904,787,869.21
  5. Step 5: Solve for x
    x = 1,491,904,787,869.21/1,384,476.96
  6. Step 6: Final answer
    x = 1,077,594.52

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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.