Home / 493,174.08-680,580-278,359.20

Finding the Fourth Proportional to 493,174.08, 680,580 and 278,359.20

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Solution

The fourth proportional to 493,174.08, 680,580 and 278,359.20 is: 384,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,174.08 : 680,580 = 278,359.20 : x
  2. Step 2: Convert to fraction form
    493,174.08/680,580 = 278,359.20/x
  3. Step 3: Cross multiply
    493,174.08x = 680,580 × 278,359.20
  4. Step 4: Simplify right side
    493,174.08x = 189,445,704,336
  5. Step 5: Solve for x
    x = 189,445,704,336/493,174.08
  6. Step 6: Final answer
    x = 384,135.57

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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.