Home / 727,113.56-1,003,156.96-421,022.84

Finding the Fourth Proportional to 727,113.56, 1,003,156.96 and 421,022.84

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Solution

The fourth proportional to 727,113.56, 1,003,156.96 and 421,022.84 is: 580,861.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,113.56 : 1,003,156.96 = 421,022.84 : x
  2. Step 2: Convert to fraction form
    727,113.56/1,003,156.96 = 421,022.84/x
  3. Step 3: Cross multiply
    727,113.56x = 1,003,156.96 × 421,022.84
  4. Step 4: Simplify right side
    727,113.56x = 422,351,992,264.97
  5. Step 5: Solve for x
    x = 422,351,992,264.97/727,113.56
  6. Step 6: Final answer
    x = 580,861.11

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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.