Home / 493,158.20-680,594.28-278,317.04

Finding the Fourth Proportional to 493,158.20, 680,594.28 and 278,317.04

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Solution

The fourth proportional to 493,158.20, 680,594.28 and 278,317.04 is: 384,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,158.20 : 680,594.28 = 278,317.04 : x
  2. Step 2: Convert to fraction form
    493,158.20/680,594.28 = 278,317.04/x
  3. Step 3: Cross multiply
    493,158.20x = 680,594.28 × 278,317.04
  4. Step 4: Simplify right side
    493,158.20x = 189,420,985,450.53
  5. Step 5: Solve for x
    x = 189,420,985,450.53/493,158.20
  6. Step 6: Final answer
    x = 384,097.81

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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.