Home / 836,940-1,255,962.96-393,742.56

Finding the Fourth Proportional to 836,940, 1,255,962.96 and 393,742.56

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Solution

The fourth proportional to 836,940, 1,255,962.96 and 393,742.56 is: 590,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,940 : 1,255,962.96 = 393,742.56 : x
  2. Step 2: Convert to fraction form
    836,940/1,255,962.96 = 393,742.56/x
  3. Step 3: Cross multiply
    836,940x = 1,255,962.96 × 393,742.56
  4. Step 4: Simplify right side
    836,940x = 494,526,071,135.58
  5. Step 5: Solve for x
    x = 494,526,071,135.58/836,940
  6. Step 6: Final answer
    x = 590,873.98

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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.