Home / 821,676.74-1,238,123.64-675,198.31

Finding the Fourth Proportional to 821,676.74, 1,238,123.64 and 675,198.31

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Solution

The fourth proportional to 821,676.74, 1,238,123.64 and 675,198.31 is: 1,017,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,676.74 : 1,238,123.64 = 675,198.31 : x
  2. Step 2: Convert to fraction form
    821,676.74/1,238,123.64 = 675,198.31/x
  3. Step 3: Cross multiply
    821,676.74x = 1,238,123.64 × 675,198.31
  4. Step 4: Simplify right side
    821,676.74x = 835,978,989,299.05
  5. Step 5: Solve for x
    x = 835,978,989,299.05/821,676.74
  6. Step 6: Final answer
    x = 1,017,406.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.