Home / 823,515.20-1,235,272.80-350,081.60

Finding the Fourth Proportional to 823,515.20, 1,235,272.80 and 350,081.60

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Solution

The fourth proportional to 823,515.20, 1,235,272.80 and 350,081.60 is: 525,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,515.20 : 1,235,272.80 = 350,081.60 : x
  2. Step 2: Convert to fraction form
    823,515.20/1,235,272.80 = 350,081.60/x
  3. Step 3: Cross multiply
    823,515.20x = 1,235,272.80 × 350,081.60
  4. Step 4: Simplify right side
    823,515.20x = 432,446,278,260.48
  5. Step 5: Solve for x
    x = 432,446,278,260.48/823,515.20
  6. Step 6: Final answer
    x = 525,122.40

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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.