Home / 727,099.56-1,003,137.64-421,008.84

Finding the Fourth Proportional to 727,099.56, 1,003,137.64 and 421,008.84

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Solution

The fourth proportional to 727,099.56, 1,003,137.64 and 421,008.84 is: 580,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,099.56 : 1,003,137.64 = 421,008.84 : x
  2. Step 2: Convert to fraction form
    727,099.56/1,003,137.64 = 421,008.84/x
  3. Step 3: Cross multiply
    727,099.56x = 1,003,137.64 × 421,008.84
  4. Step 4: Simplify right side
    727,099.56x = 422,329,814,176.74
  5. Step 5: Solve for x
    x = 422,329,814,176.74/727,099.56
  6. Step 6: Final answer
    x = 580,841.80

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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.