Home / 345,879.60-518,819.40-275,895.60

Finding the Fourth Proportional to 345,879.60, 518,819.40 and 275,895.60

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Solution

The fourth proportional to 345,879.60, 518,819.40 and 275,895.60 is: 413,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,879.60 : 518,819.40 = 275,895.60 : x
  2. Step 2: Convert to fraction form
    345,879.60/518,819.40 = 275,895.60/x
  3. Step 3: Cross multiply
    345,879.60x = 518,819.40 × 275,895.60
  4. Step 4: Simplify right side
    345,879.60x = 143,139,989,654.64
  5. Step 5: Solve for x
    x = 143,139,989,654.64/345,879.60
  6. Step 6: Final answer
    x = 413,843.40

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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.