Home / 1,123,358.20-1,685,037.30-762,551.80

Finding the Fourth Proportional to 1,123,358.20, 1,685,037.30 and 762,551.80

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Solution

The fourth proportional to 1,123,358.20, 1,685,037.30 and 762,551.80 is: 1,143,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,358.20 : 1,685,037.30 = 762,551.80 : x
  2. Step 2: Convert to fraction form
    1,123,358.20/1,685,037.30 = 762,551.80/x
  3. Step 3: Cross multiply
    1,123,358.20x = 1,685,037.30 × 762,551.80
  4. Step 4: Simplify right side
    1,123,358.20x = 1,284,928,226,182.14
  5. Step 5: Solve for x
    x = 1,284,928,226,182.14/1,123,358.20
  6. Step 6: Final answer
    x = 1,143,827.70

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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.