Home / 711,351.52-981,651.27-389,060.62

Finding the Fourth Proportional to 711,351.52, 981,651.27 and 389,060.62

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Solution

The fourth proportional to 711,351.52, 981,651.27 and 389,060.62 is: 536,896.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,351.52 : 981,651.27 = 389,060.62 : x
  2. Step 2: Convert to fraction form
    711,351.52/981,651.27 = 389,060.62/x
  3. Step 3: Cross multiply
    711,351.52x = 981,651.27 × 389,060.62
  4. Step 4: Simplify right side
    711,351.52x = 381,921,851,729.99
  5. Step 5: Solve for x
    x = 381,921,851,729.99/711,351.52
  6. Step 6: Final answer
    x = 536,896.09

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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.