Home / 711,320.27-981,608.22-389,029.37

Finding the Fourth Proportional to 711,320.27, 981,608.22 and 389,029.37

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Solution

The fourth proportional to 711,320.27, 981,608.22 and 389,029.37 is: 536,853.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,320.27 : 981,608.22 = 389,029.37 : x
  2. Step 2: Convert to fraction form
    711,320.27/981,608.22 = 389,029.37/x
  3. Step 3: Cross multiply
    711,320.27x = 981,608.22 × 389,029.37
  4. Step 4: Simplify right side
    711,320.27x = 381,874,427,413.42
  5. Step 5: Solve for x
    x = 381,874,427,413.42/711,320.27
  6. Step 6: Final answer
    x = 536,853.01

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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.