Home / 825,399.90-1,139,028.18-502,992.36

Finding the Fourth Proportional to 825,399.90, 1,139,028.18 and 502,992.36

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Solution

The fourth proportional to 825,399.90, 1,139,028.18 and 502,992.36 is: 694,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,399.90 : 1,139,028.18 = 502,992.36 : x
  2. Step 2: Convert to fraction form
    825,399.90/1,139,028.18 = 502,992.36/x
  3. Step 3: Cross multiply
    825,399.90x = 1,139,028.18 × 502,992.36
  4. Step 4: Simplify right side
    825,399.90x = 572,922,472,364.71
  5. Step 5: Solve for x
    x = 572,922,472,364.71/825,399.90
  6. Step 6: Final answer
    x = 694,115.03

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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.