Home / 1,221,416.15-1,832,249.90-422,696.48

Finding the Fourth Proportional to 1,221,416.15, 1,832,249.90 and 422,696.48

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Solution

The fourth proportional to 1,221,416.15, 1,832,249.90 and 422,696.48 is: 634,088.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,416.15 : 1,832,249.90 = 422,696.48 : x
  2. Step 2: Convert to fraction form
    1,221,416.15/1,832,249.90 = 422,696.48/x
  3. Step 3: Cross multiply
    1,221,416.15x = 1,832,249.90 × 422,696.48
  4. Step 4: Simplify right side
    1,221,416.15x = 774,485,575,105.84
  5. Step 5: Solve for x
    x = 774,485,575,105.84/1,221,416.15
  6. Step 6: Final answer
    x = 634,088.21

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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.