Home / 509,478.08-763,538.97-269,540.77

Finding the Fourth Proportional to 509,478.08, 763,538.97 and 269,540.77

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Solution

The fourth proportional to 509,478.08, 763,538.97 and 269,540.77 is: 403,952.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,478.08 : 763,538.97 = 269,540.77 : x
  2. Step 2: Convert to fraction form
    509,478.08/763,538.97 = 269,540.77/x
  3. Step 3: Cross multiply
    509,478.08x = 763,538.97 × 269,540.77
  4. Step 4: Simplify right side
    509,478.08x = 205,804,883,395.16
  5. Step 5: Solve for x
    x = 205,804,883,395.16/509,478.08
  6. Step 6: Final answer
    x = 403,952.38

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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.