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Finding the Fourth Proportional to 659,211.02, 988,489.35 and 209,873.37

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Solution

The fourth proportional to 659,211.02, 988,489.35 and 209,873.37 is: 314,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,211.02 : 988,489.35 = 209,873.37 : x
  2. Step 2: Convert to fraction form
    659,211.02/988,489.35 = 209,873.37/x
  3. Step 3: Cross multiply
    659,211.02x = 988,489.35 × 209,873.37
  4. Step 4: Simplify right side
    659,211.02x = 207,457,591,093.61
  5. Step 5: Solve for x
    x = 207,457,591,093.61/659,211.02
  6. Step 6: Final answer
    x = 314,705.89

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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.