Home / 509,983.72-703,767.54-283,624.36

Finding the Fourth Proportional to 509,983.72, 703,767.54 and 283,624.36

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Solution

The fourth proportional to 509,983.72, 703,767.54 and 283,624.36 is: 391,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,983.72 : 703,767.54 = 283,624.36 : x
  2. Step 2: Convert to fraction form
    509,983.72/703,767.54 = 283,624.36/x
  3. Step 3: Cross multiply
    509,983.72x = 703,767.54 × 283,624.36
  4. Step 4: Simplify right side
    509,983.72x = 199,605,618,121.27
  5. Step 5: Solve for x
    x = 199,605,618,121.27/509,983.72
  6. Step 6: Final answer
    x = 391,396.06

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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.