Home / 685,286.36-945,680.16-375,188.28

Finding the Fourth Proportional to 685,286.36, 945,680.16 and 375,188.28

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Solution

The fourth proportional to 685,286.36, 945,680.16 and 375,188.28 is: 517,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,286.36 : 945,680.16 = 375,188.28 : x
  2. Step 2: Convert to fraction form
    685,286.36/945,680.16 = 375,188.28/x
  3. Step 3: Cross multiply
    685,286.36x = 945,680.16 × 375,188.28
  4. Step 4: Simplify right side
    685,286.36x = 354,808,112,660.53
  5. Step 5: Solve for x
    x = 354,808,112,660.53/685,286.36
  6. Step 6: Final answer
    x = 517,751.60

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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.