Home / 685,165.64-945,504.36-379,242.61

Finding the Fourth Proportional to 685,165.64, 945,504.36 and 379,242.61

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Solution

The fourth proportional to 685,165.64, 945,504.36 and 379,242.61 is: 523,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,165.64 : 945,504.36 = 379,242.61 : x
  2. Step 2: Convert to fraction form
    685,165.64/945,504.36 = 379,242.61/x
  3. Step 3: Cross multiply
    685,165.64x = 945,504.36 × 379,242.61
  4. Step 4: Simplify right side
    685,165.64x = 358,575,538,889.02
  5. Step 5: Solve for x
    x = 358,575,538,889.02/685,165.64
  6. Step 6: Final answer
    x = 523,341.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.