Home / 1,221,773.86-1,832,221.59-422,838.58

Finding the Fourth Proportional to 1,221,773.86, 1,832,221.59 and 422,838.58

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Solution

The fourth proportional to 1,221,773.86, 1,832,221.59 and 422,838.58 is: 634,105.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,773.86 : 1,832,221.59 = 422,838.58 : x
  2. Step 2: Convert to fraction form
    1,221,773.86/1,832,221.59 = 422,838.58/x
  3. Step 3: Cross multiply
    1,221,773.86x = 1,832,221.59 × 422,838.58
  4. Step 4: Simplify right side
    1,221,773.86x = 774,733,975,360.94
  5. Step 5: Solve for x
    x = 774,733,975,360.94/1,221,773.86
  6. Step 6: Final answer
    x = 634,105.87

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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.