Home / 2,172,143.07-2,997,578.07-1,205,363.34

Finding the Fourth Proportional to 2,172,143.07, 2,997,578.07 and 1,205,363.34

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Solution

The fourth proportional to 2,172,143.07, 2,997,578.07 and 1,205,363.34 is: 1,663,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,143.07 : 2,997,578.07 = 1,205,363.34 : x
  2. Step 2: Convert to fraction form
    2,172,143.07/2,997,578.07 = 1,205,363.34/x
  3. Step 3: Cross multiply
    2,172,143.07x = 2,997,578.07 × 1,205,363.34
  4. Step 4: Simplify right side
    2,172,143.07x = 3,613,170,714,365.95
  5. Step 5: Solve for x
    x = 3,613,170,714,365.95/2,172,143.07
  6. Step 6: Final answer
    x = 1,663,412.86

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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.