Home / 1,223,861.94-1,688,891.38-672,576.34

Finding the Fourth Proportional to 1,223,861.94, 1,688,891.38 and 672,576.34

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Solution

The fourth proportional to 1,223,861.94, 1,688,891.38 and 672,576.34 is: 928,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,861.94 : 1,688,891.38 = 672,576.34 : x
  2. Step 2: Convert to fraction form
    1,223,861.94/1,688,891.38 = 672,576.34/x
  3. Step 3: Cross multiply
    1,223,861.94x = 1,688,891.38 × 672,576.34
  4. Step 4: Simplify right side
    1,223,861.94x = 1,135,908,383,017.95
  5. Step 5: Solve for x
    x = 1,135,908,383,017.95/1,223,861.94
  6. Step 6: Final answer
    x = 928,134.41

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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.