Home / 1,328,649.36-1,992,974.16-331,377.36

Finding the Fourth Proportional to 1,328,649.36, 1,992,974.16 and 331,377.36

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Solution

The fourth proportional to 1,328,649.36, 1,992,974.16 and 331,377.36 is: 497,066.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,649.36 : 1,992,974.16 = 331,377.36 : x
  2. Step 2: Convert to fraction form
    1,328,649.36/1,992,974.16 = 331,377.36/x
  3. Step 3: Cross multiply
    1,328,649.36x = 1,992,974.16 × 331,377.36
  4. Step 4: Simplify right side
    1,328,649.36x = 660,426,515,689.02
  5. Step 5: Solve for x
    x = 660,426,515,689.02/1,328,649.36
  6. Step 6: Final answer
    x = 497,066.07

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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.