Home / 823,478.55-1,233,418.84-342,247.31

Finding the Fourth Proportional to 823,478.55, 1,233,418.84 and 342,247.31

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Solution

The fourth proportional to 823,478.55, 1,233,418.84 and 342,247.31 is: 512,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,478.55 : 1,233,418.84 = 342,247.31 : x
  2. Step 2: Convert to fraction form
    823,478.55/1,233,418.84 = 342,247.31/x
  3. Step 3: Cross multiply
    823,478.55x = 1,233,418.84 × 342,247.31
  4. Step 4: Simplify right side
    823,478.55x = 422,134,279,621.07
  5. Step 5: Solve for x
    x = 422,134,279,621.07/823,478.55
  6. Step 6: Final answer
    x = 512,623.29

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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.