Home / 478,212.66-659,735.37-284,581.56

Finding the Fourth Proportional to 478,212.66, 659,735.37 and 284,581.56

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Solution

The fourth proportional to 478,212.66, 659,735.37 and 284,581.56 is: 392,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,212.66 : 659,735.37 = 284,581.56 : x
  2. Step 2: Convert to fraction form
    478,212.66/659,735.37 = 284,581.56/x
  3. Step 3: Cross multiply
    478,212.66x = 659,735.37 × 284,581.56
  4. Step 4: Simplify right side
    478,212.66x = 187,748,520,781.78
  5. Step 5: Solve for x
    x = 187,748,520,781.78/478,212.66
  6. Step 6: Final answer
    x = 392,604.66

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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.