Home / 1,315,375.30-1,972,309.32-404,320.51

Finding the Fourth Proportional to 1,315,375.30, 1,972,309.32 and 404,320.51

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Solution

The fourth proportional to 1,315,375.30, 1,972,309.32 and 404,320.51 is: 606,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,375.30 : 1,972,309.32 = 404,320.51 : x
  2. Step 2: Convert to fraction form
    1,315,375.30/1,972,309.32 = 404,320.51/x
  3. Step 3: Cross multiply
    1,315,375.30x = 1,972,309.32 × 404,320.51
  4. Step 4: Simplify right side
    1,315,375.30x = 797,445,110,140.15
  5. Step 5: Solve for x
    x = 797,445,110,140.15/1,315,375.30
  6. Step 6: Final answer
    x = 606,249.11

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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.