Home / 727,110.56-1,003,152.82-421,019.84

Finding the Fourth Proportional to 727,110.56, 1,003,152.82 and 421,019.84

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Solution

The fourth proportional to 727,110.56, 1,003,152.82 and 421,019.84 is: 580,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,110.56 : 1,003,152.82 = 421,019.84 : x
  2. Step 2: Convert to fraction form
    727,110.56/1,003,152.82 = 421,019.84/x
  3. Step 3: Cross multiply
    727,110.56x = 1,003,152.82 × 421,019.84
  4. Step 4: Simplify right side
    727,110.56x = 422,347,239,771.95
  5. Step 5: Solve for x
    x = 422,347,239,771.95/727,110.56
  6. Step 6: Final answer
    x = 580,856.97

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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.