Home / 814,249.35-1,220,783.54-547,347.87

Finding the Fourth Proportional to 814,249.35, 1,220,783.54 and 547,347.87

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Solution

The fourth proportional to 814,249.35, 1,220,783.54 and 547,347.87 is: 820,624.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,249.35 : 1,220,783.54 = 547,347.87 : x
  2. Step 2: Convert to fraction form
    814,249.35/1,220,783.54 = 547,347.87/x
  3. Step 3: Cross multiply
    814,249.35x = 1,220,783.54 × 547,347.87
  4. Step 4: Simplify right side
    814,249.35x = 668,193,267,613.32
  5. Step 5: Solve for x
    x = 668,193,267,613.32/814,249.35
  6. Step 6: Final answer
    x = 820,624.87

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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.