Home / 945,403.88-1,418,105.10-280,555.88

Finding the Fourth Proportional to 945,403.88, 1,418,105.10 and 280,555.88

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Solution

The fourth proportional to 945,403.88, 1,418,105.10 and 280,555.88 is: 420,833.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,403.88 : 1,418,105.10 = 280,555.88 : x
  2. Step 2: Convert to fraction form
    945,403.88/1,418,105.10 = 280,555.88/x
  3. Step 3: Cross multiply
    945,403.88x = 1,418,105.10 × 280,555.88
  4. Step 4: Simplify right side
    945,403.88x = 397,857,724,262.99
  5. Step 5: Solve for x
    x = 397,857,724,262.99/945,403.88
  6. Step 6: Final answer
    x = 420,833.61

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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.