Home / 836,387.39-1,254,997.85-331,312.39

Finding the Fourth Proportional to 836,387.39, 1,254,997.85 and 331,312.39

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Solution

The fourth proportional to 836,387.39, 1,254,997.85 and 331,312.39 is: 497,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,387.39 : 1,254,997.85 = 331,312.39 : x
  2. Step 2: Convert to fraction form
    836,387.39/1,254,997.85 = 331,312.39/x
  3. Step 3: Cross multiply
    836,387.39x = 1,254,997.85 × 331,312.39
  4. Step 4: Simplify right side
    836,387.39x = 415,796,341,257.30
  5. Step 5: Solve for x
    x = 415,796,341,257.30/836,387.39
  6. Step 6: Final answer
    x = 497,133.68

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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.