Home / 665,242.46-997,849.55-215,962.68

Finding the Fourth Proportional to 665,242.46, 997,849.55 and 215,962.68

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Solution

The fourth proportional to 665,242.46, 997,849.55 and 215,962.68 is: 323,939.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,242.46 : 997,849.55 = 215,962.68 : x
  2. Step 2: Convert to fraction form
    665,242.46/997,849.55 = 215,962.68/x
  3. Step 3: Cross multiply
    665,242.46x = 997,849.55 × 215,962.68
  4. Step 4: Simplify right side
    665,242.46x = 215,498,263,054.79
  5. Step 5: Solve for x
    x = 215,498,263,054.79/665,242.46
  6. Step 6: Final answer
    x = 323,939.43

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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.