Home / 510,379.12-765,054.03-320,974.81

Finding the Fourth Proportional to 510,379.12, 765,054.03 and 320,974.81

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Solution

The fourth proportional to 510,379.12, 765,054.03 and 320,974.81 is: 481,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,379.12 : 765,054.03 = 320,974.81 : x
  2. Step 2: Convert to fraction form
    510,379.12/765,054.03 = 320,974.81/x
  3. Step 3: Cross multiply
    510,379.12x = 765,054.03 × 320,974.81
  4. Step 4: Simplify right side
    510,379.12x = 245,563,071,918.98
  5. Step 5: Solve for x
    x = 245,563,071,918.98/510,379.12
  6. Step 6: Final answer
    x = 481,138.55

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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.