Home / 809,145.60-1,213,864.20-335,878.80

Finding the Fourth Proportional to 809,145.60, 1,213,864.20 and 335,878.80

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Solution

The fourth proportional to 809,145.60, 1,213,864.20 and 335,878.80 is: 503,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,145.60 : 1,213,864.20 = 335,878.80 : x
  2. Step 2: Convert to fraction form
    809,145.60/1,213,864.20 = 335,878.80/x
  3. Step 3: Cross multiply
    809,145.60x = 1,213,864.20 × 335,878.80
  4. Step 4: Simplify right side
    809,145.60x = 407,711,250,858.96
  5. Step 5: Solve for x
    x = 407,711,250,858.96/809,145.60
  6. Step 6: Final answer
    x = 503,878.72

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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.