Home / 759,956.28-1,048,770.54-420,418.68

Finding the Fourth Proportional to 759,956.28, 1,048,770.54 and 420,418.68

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Solution

The fourth proportional to 759,956.28, 1,048,770.54 and 420,418.68 is: 580,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,956.28 : 1,048,770.54 = 420,418.68 : x
  2. Step 2: Convert to fraction form
    759,956.28/1,048,770.54 = 420,418.68/x
  3. Step 3: Cross multiply
    759,956.28x = 1,048,770.54 × 420,418.68
  4. Step 4: Simplify right side
    759,956.28x = 440,922,726,049.69
  5. Step 5: Solve for x
    x = 440,922,726,049.69/759,956.28
  6. Step 6: Final answer
    x = 580,194.86

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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.