Home / 820,649.45-1,132,685.20-481,227.05

Finding the Fourth Proportional to 820,649.45, 1,132,685.20 and 481,227.05

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Solution

The fourth proportional to 820,649.45, 1,132,685.20 and 481,227.05 is: 664,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,649.45 : 1,132,685.20 = 481,227.05 : x
  2. Step 2: Convert to fraction form
    820,649.45/1,132,685.20 = 481,227.05/x
  3. Step 3: Cross multiply
    820,649.45x = 1,132,685.20 × 481,227.05
  4. Step 4: Simplify right side
    820,649.45x = 545,078,760,807.91
  5. Step 5: Solve for x
    x = 545,078,760,807.91/820,649.45
  6. Step 6: Final answer
    x = 664,204.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.