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Finding the Fourth Proportional to 579,870.56, 800,571.30 and 379,016.48

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Solution

The fourth proportional to 579,870.56, 800,571.30 and 379,016.48 is: 523,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,870.56 : 800,571.30 = 379,016.48 : x
  2. Step 2: Convert to fraction form
    579,870.56/800,571.30 = 379,016.48/x
  3. Step 3: Cross multiply
    579,870.56x = 800,571.30 × 379,016.48
  4. Step 4: Simplify right side
    579,870.56x = 303,429,716,695.14
  5. Step 5: Solve for x
    x = 303,429,716,695.14/579,870.56
  6. Step 6: Final answer
    x = 523,271.46

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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.