Home / 823,045.26-1,234,921.98-317,961.78

Finding the Fourth Proportional to 823,045.26, 1,234,921.98 and 317,961.78

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Solution

The fourth proportional to 823,045.26, 1,234,921.98 and 317,961.78 is: 477,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,045.26 : 1,234,921.98 = 317,961.78 : x
  2. Step 2: Convert to fraction form
    823,045.26/1,234,921.98 = 317,961.78/x
  3. Step 3: Cross multiply
    823,045.26x = 1,234,921.98 × 317,961.78
  4. Step 4: Simplify right side
    823,045.26x = 392,657,990,921.92
  5. Step 5: Solve for x
    x = 392,657,990,921.92/823,045.26
  6. Step 6: Final answer
    x = 477,079.46

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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.