Home / 908,138.60-1,361,235.90-308,544.20

Finding the Fourth Proportional to 908,138.60, 1,361,235.90 and 308,544.20

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Solution

The fourth proportional to 908,138.60, 1,361,235.90 and 308,544.20 is: 462,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,138.60 : 1,361,235.90 = 308,544.20 : x
  2. Step 2: Convert to fraction form
    908,138.60/1,361,235.90 = 308,544.20/x
  3. Step 3: Cross multiply
    908,138.60x = 1,361,235.90 × 308,544.20
  4. Step 4: Simplify right side
    908,138.60x = 420,001,441,776.78
  5. Step 5: Solve for x
    x = 420,001,441,776.78/908,138.60
  6. Step 6: Final answer
    x = 462,486.06

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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.