Home / 823,795.20-1,236,470.40-508,867.20

Finding the Fourth Proportional to 823,795.20, 1,236,470.40 and 508,867.20

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Solution

The fourth proportional to 823,795.20, 1,236,470.40 and 508,867.20 is: 763,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,795.20 : 1,236,470.40 = 508,867.20 : x
  2. Step 2: Convert to fraction form
    823,795.20/1,236,470.40 = 508,867.20/x
  3. Step 3: Cross multiply
    823,795.20x = 1,236,470.40 × 508,867.20
  4. Step 4: Simplify right side
    823,795.20x = 629,199,230,330.88
  5. Step 5: Solve for x
    x = 629,199,230,330.88/823,795.20
  6. Step 6: Final answer
    x = 763,781.13

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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.