Home / 628,703.46-867,630.34-342,242.64

Finding the Fourth Proportional to 628,703.46, 867,630.34 and 342,242.64

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Solution

The fourth proportional to 628,703.46, 867,630.34 and 342,242.64 is: 472,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,703.46 : 867,630.34 = 342,242.64 : x
  2. Step 2: Convert to fraction form
    628,703.46/867,630.34 = 342,242.64/x
  3. Step 3: Cross multiply
    628,703.46x = 867,630.34 × 342,242.64
  4. Step 4: Simplify right side
    628,703.46x = 296,940,098,105.70
  5. Step 5: Solve for x
    x = 296,940,098,105.70/628,703.46
  6. Step 6: Final answer
    x = 472,305.49

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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.