Home / 823,449.60-1,235,289.60-350,131.20

Finding the Fourth Proportional to 823,449.60, 1,235,289.60 and 350,131.20

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Solution

The fourth proportional to 823,449.60, 1,235,289.60 and 350,131.20 is: 525,245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,449.60 : 1,235,289.60 = 350,131.20 : x
  2. Step 2: Convert to fraction form
    823,449.60/1,235,289.60 = 350,131.20/x
  3. Step 3: Cross multiply
    823,449.60x = 1,235,289.60 × 350,131.20
  4. Step 4: Simplify right side
    823,449.60x = 432,513,429,995.52
  5. Step 5: Solve for x
    x = 432,513,429,995.52/823,449.60
  6. Step 6: Final answer
    x = 525,245.78

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1.5x scale

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.