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Finding the Fourth Proportional to 520,053.10, 779,496.45 and 267,235.90

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Solution

The fourth proportional to 520,053.10, 779,496.45 and 267,235.90 is: 400,554.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,053.10 : 779,496.45 = 267,235.90 : x
  2. Step 2: Convert to fraction form
    520,053.10/779,496.45 = 267,235.90/x
  3. Step 3: Cross multiply
    520,053.10x = 779,496.45 × 267,235.90
  4. Step 4: Simplify right side
    520,053.10x = 208,309,435,362.56
  5. Step 5: Solve for x
    x = 208,309,435,362.56/520,053.10
  6. Step 6: Final answer
    x = 400,554.17

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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.