Home / 814,558.41-1,220,065.34-547,132.05

Finding the Fourth Proportional to 814,558.41, 1,220,065.34 and 547,132.05

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Solution

The fourth proportional to 814,558.41, 1,220,065.34 and 547,132.05 is: 819,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,558.41 : 1,220,065.34 = 547,132.05 : x
  2. Step 2: Convert to fraction form
    814,558.41/1,220,065.34 = 547,132.05/x
  3. Step 3: Cross multiply
    814,558.41x = 1,220,065.34 × 547,132.05
  4. Step 4: Simplify right side
    814,558.41x = 667,536,847,872.49
  5. Step 5: Solve for x
    x = 667,536,847,872.49/814,558.41
  6. Step 6: Final answer
    x = 819,507.65

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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.