Home / 825,854.40-1,237,226.40-425,131.20

Finding the Fourth Proportional to 825,854.40, 1,237,226.40 and 425,131.20

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Solution

The fourth proportional to 825,854.40, 1,237,226.40 and 425,131.20 is: 636,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,854.40 : 1,237,226.40 = 425,131.20 : x
  2. Step 2: Convert to fraction form
    825,854.40/1,237,226.40 = 425,131.20/x
  3. Step 3: Cross multiply
    825,854.40x = 1,237,226.40 × 425,131.20
  4. Step 4: Simplify right side
    825,854.40x = 525,983,544,103.68
  5. Step 5: Solve for x
    x = 525,983,544,103.68/825,854.40
  6. Step 6: Final answer
    x = 636,896.22

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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.