Home / 665,016.28-997,664.69-215,702.26

Finding the Fourth Proportional to 665,016.28, 997,664.69 and 215,702.26

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Solution

The fourth proportional to 665,016.28, 997,664.69 and 215,702.26 is: 323,598.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,016.28 : 997,664.69 = 215,702.26 : x
  2. Step 2: Convert to fraction form
    665,016.28/997,664.69 = 215,702.26/x
  3. Step 3: Cross multiply
    665,016.28x = 997,664.69 × 215,702.26
  4. Step 4: Simplify right side
    665,016.28x = 215,198,526,400.29
  5. Step 5: Solve for x
    x = 215,198,526,400.29/665,016.28
  6. Step 6: Final answer
    x = 323,598.89

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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.