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Finding the Fourth Proportional to 565,062.35, 779,800.11 and 306,939.22

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Solution

The fourth proportional to 565,062.35, 779,800.11 and 306,939.22 is: 423,583.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,062.35 : 779,800.11 = 306,939.22 : x
  2. Step 2: Convert to fraction form
    565,062.35/779,800.11 = 306,939.22/x
  3. Step 3: Cross multiply
    565,062.35x = 779,800.11 × 306,939.22
  4. Step 4: Simplify right side
    565,062.35x = 239,351,237,519.31
  5. Step 5: Solve for x
    x = 239,351,237,519.31/565,062.35
  6. Step 6: Final answer
    x = 423,583.76

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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.