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Finding the Fourth Proportional to 666,341.89, 999,512.06 and 217,062.03

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Solution

The fourth proportional to 666,341.89, 999,512.06 and 217,062.03 is: 325,592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,341.89 : 999,512.06 = 217,062.03 : x
  2. Step 2: Convert to fraction form
    666,341.89/999,512.06 = 217,062.03/x
  3. Step 3: Cross multiply
    666,341.89x = 999,512.06 × 217,062.03
  4. Step 4: Simplify right side
    666,341.89x = 216,956,113,793.69
  5. Step 5: Solve for x
    x = 216,956,113,793.69/666,341.89
  6. Step 6: Final answer
    x = 325,592.79

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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.