Home / 493,531.56-681,068.20-278,658.76

Finding the Fourth Proportional to 493,531.56, 681,068.20 and 278,658.76

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Solution

The fourth proportional to 493,531.56, 681,068.20 and 278,658.76 is: 384,546.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,531.56 : 681,068.20 = 278,658.76 : x
  2. Step 2: Convert to fraction form
    493,531.56/681,068.20 = 278,658.76/x
  3. Step 3: Cross multiply
    493,531.56x = 681,068.20 × 278,658.76
  4. Step 4: Simplify right side
    493,531.56x = 189,785,620,087.43
  5. Step 5: Solve for x
    x = 189,785,620,087.43/493,531.56
  6. Step 6: Final answer
    x = 384,546.07

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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.