Home / 665,228.89-997,829.16-215,949.03

Finding the Fourth Proportional to 665,228.89, 997,829.16 and 215,949.03

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Solution

The fourth proportional to 665,228.89, 997,829.16 and 215,949.03 is: 323,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,228.89 : 997,829.16 = 215,949.03 : x
  2. Step 2: Convert to fraction form
    665,228.89/997,829.16 = 215,949.03/x
  3. Step 3: Cross multiply
    665,228.89x = 997,829.16 × 215,949.03
  4. Step 4: Simplify right side
    665,228.89x = 215,480,239,207.72
  5. Step 5: Solve for x
    x = 215,480,239,207.72/665,228.89
  6. Step 6: Final answer
    x = 323,918.94

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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.