Home / 711,771.30-1,067,110.20-357,039.90

Finding the Fourth Proportional to 711,771.30, 1,067,110.20 and 357,039.90

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Solution

The fourth proportional to 711,771.30, 1,067,110.20 and 357,039.90 is: 535,285.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,771.30 : 1,067,110.20 = 357,039.90 : x
  2. Step 2: Convert to fraction form
    711,771.30/1,067,110.20 = 357,039.90/x
  3. Step 3: Cross multiply
    711,771.30x = 1,067,110.20 × 357,039.90
  4. Step 4: Simplify right side
    711,771.30x = 381,000,919,096.98
  5. Step 5: Solve for x
    x = 381,000,919,096.98/711,771.30
  6. Step 6: Final answer
    x = 535,285.59

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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.