Home / 711,212.04-981,564.30-405,399.96

Finding the Fourth Proportional to 711,212.04, 981,564.30 and 405,399.96

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Solution

The fourth proportional to 711,212.04, 981,564.30 and 405,399.96 is: 559,504.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,212.04 : 981,564.30 = 405,399.96 : x
  2. Step 2: Convert to fraction form
    711,212.04/981,564.30 = 405,399.96/x
  3. Step 3: Cross multiply
    711,212.04x = 981,564.30 × 405,399.96
  4. Step 4: Simplify right side
    711,212.04x = 397,926,127,957.43
  5. Step 5: Solve for x
    x = 397,926,127,957.43/711,212.04
  6. Step 6: Final answer
    x = 559,504.21

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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.