Home / 394,971.59-592,473.79-128,734.41

Finding the Fourth Proportional to 394,971.59, 592,473.79 and 128,734.41

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Solution

The fourth proportional to 394,971.59, 592,473.79 and 128,734.41 is: 193,106.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,971.59 : 592,473.79 = 128,734.41 : x
  2. Step 2: Convert to fraction form
    394,971.59/592,473.79 = 128,734.41/x
  3. Step 3: Cross multiply
    394,971.59x = 592,473.79 × 128,734.41
  4. Step 4: Simplify right side
    394,971.59x = 76,271,766,178.81
  5. Step 5: Solve for x
    x = 76,271,766,178.81/394,971.59
  6. Step 6: Final answer
    x = 193,106.97

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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.