Home / 823,515.58-1,234,772.78-343,162.90

Finding the Fourth Proportional to 823,515.58, 1,234,772.78 and 343,162.90

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Solution

The fourth proportional to 823,515.58, 1,234,772.78 and 343,162.90 is: 514,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,515.58 : 1,234,772.78 = 343,162.90 : x
  2. Step 2: Convert to fraction form
    823,515.58/1,234,772.78 = 343,162.90/x
  3. Step 3: Cross multiply
    823,515.58x = 1,234,772.78 × 343,162.90
  4. Step 4: Simplify right side
    823,515.58x = 423,728,208,025.86
  5. Step 5: Solve for x
    x = 423,728,208,025.86/823,515.58
  6. Step 6: Final answer
    x = 514,535.75

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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.