Home / 820,652.18-1,132,688.94-481,229.78

Finding the Fourth Proportional to 820,652.18, 1,132,688.94 and 481,229.78

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Solution

The fourth proportional to 820,652.18, 1,132,688.94 and 481,229.78 is: 664,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,652.18 : 1,132,688.94 = 481,229.78 : x
  2. Step 2: Convert to fraction form
    820,652.18/1,132,688.94 = 481,229.78/x
  3. Step 3: Cross multiply
    820,652.18x = 1,132,688.94 × 481,229.78
  4. Step 4: Simplify right side
    820,652.18x = 545,083,649,404.63
  5. Step 5: Solve for x
    x = 545,083,649,404.63/820,652.18
  6. Step 6: Final answer
    x = 664,207.89

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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.