Home / 394,990.02-592,546.46-128,688.48

Finding the Fourth Proportional to 394,990.02, 592,546.46 and 128,688.48

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Solution

The fourth proportional to 394,990.02, 592,546.46 and 128,688.48 is: 193,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,990.02 : 592,546.46 = 128,688.48 : x
  2. Step 2: Convert to fraction form
    394,990.02/592,546.46 = 128,688.48/x
  3. Step 3: Cross multiply
    394,990.02x = 592,546.46 × 128,688.48
  4. Step 4: Simplify right side
    394,990.02x = 76,253,902,623.34
  5. Step 5: Solve for x
    x = 76,253,902,623.34/394,990.02
  6. Step 6: Final answer
    x = 193,052.73

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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.