Home / 1,308,263.20-1,960,936.80-509,279.20

Finding the Fourth Proportional to 1,308,263.20, 1,960,936.80 and 509,279.20

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Solution

The fourth proportional to 1,308,263.20, 1,960,936.80 and 509,279.20 is: 763,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,263.20 : 1,960,936.80 = 509,279.20 : x
  2. Step 2: Convert to fraction form
    1,308,263.20/1,960,936.80 = 509,279.20/x
  3. Step 3: Cross multiply
    1,308,263.20x = 1,960,936.80 × 509,279.20
  4. Step 4: Simplify right side
    1,308,263.20x = 998,664,324,754.56
  5. Step 5: Solve for x
    x = 998,664,324,754.56/1,308,263.20
  6. Step 6: Final answer
    x = 763,351.23

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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.