Home / 711,494.08-981,885.26-389,196.82

Finding the Fourth Proportional to 711,494.08, 981,885.26 and 389,196.82

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Solution

The fourth proportional to 711,494.08, 981,885.26 and 389,196.82 is: 537,104.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,494.08 : 981,885.26 = 389,196.82 : x
  2. Step 2: Convert to fraction form
    711,494.08/981,885.26 = 389,196.82/x
  3. Step 3: Cross multiply
    711,494.08x = 981,885.26 × 389,196.82
  4. Step 4: Simplify right side
    711,494.08x = 382,146,620,796.87
  5. Step 5: Solve for x
    x = 382,146,620,796.87/711,494.08
  6. Step 6: Final answer
    x = 537,104.43

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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.