Home / 727,299.68-1,003,805.87-421,571.66

Finding the Fourth Proportional to 727,299.68, 1,003,805.87 and 421,571.66

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Solution

The fourth proportional to 727,299.68, 1,003,805.87 and 421,571.66 is: 581,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,299.68 : 1,003,805.87 = 421,571.66 : x
  2. Step 2: Convert to fraction form
    727,299.68/1,003,805.87 = 421,571.66/x
  3. Step 3: Cross multiply
    727,299.68x = 1,003,805.87 × 421,571.66
  4. Step 4: Simplify right side
    727,299.68x = 423,176,099,806.76
  5. Step 5: Solve for x
    x = 423,176,099,806.76/727,299.68
  6. Step 6: Final answer
    x = 581,845.58

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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.