Home / 394,740.80-592,111.20-268,769.60

Finding the Fourth Proportional to 394,740.80, 592,111.20 and 268,769.60

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Solution

The fourth proportional to 394,740.80, 592,111.20 and 268,769.60 is: 403,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,740.80 : 592,111.20 = 268,769.60 : x
  2. Step 2: Convert to fraction form
    394,740.80/592,111.20 = 268,769.60/x
  3. Step 3: Cross multiply
    394,740.80x = 592,111.20 × 268,769.60
  4. Step 4: Simplify right side
    394,740.80x = 159,141,490,379.52
  5. Step 5: Solve for x
    x = 159,141,490,379.52/394,740.80
  6. Step 6: Final answer
    x = 403,154.40

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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.