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Finding the Fourth Proportional to 520,127.22, 779,969.29 and 204,362.63

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Solution

The fourth proportional to 520,127.22, 779,969.29 and 204,362.63 is: 306,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,127.22 : 779,969.29 = 204,362.63 : x
  2. Step 2: Convert to fraction form
    520,127.22/779,969.29 = 204,362.63/x
  3. Step 3: Cross multiply
    520,127.22x = 779,969.29 × 204,362.63
  4. Step 4: Simplify right side
    520,127.22x = 159,396,575,423.63
  5. Step 5: Solve for x
    x = 159,396,575,423.63/520,127.22
  6. Step 6: Final answer
    x = 306,456.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.