Home / 394,871.15-592,306.26-128,631.24

Finding the Fourth Proportional to 394,871.15, 592,306.26 and 128,631.24

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Solution

The fourth proportional to 394,871.15, 592,306.26 and 128,631.24 is: 192,946.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,871.15 : 592,306.26 = 128,631.24 : x
  2. Step 2: Convert to fraction form
    394,871.15/592,306.26 = 128,631.24/x
  3. Step 3: Cross multiply
    394,871.15x = 592,306.26 × 128,631.24
  4. Step 4: Simplify right side
    394,871.15x = 76,189,088,683.56
  5. Step 5: Solve for x
    x = 76,189,088,683.56/394,871.15
  6. Step 6: Final answer
    x = 192,946.71

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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.