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Finding the Fourth Proportional to 503,622.60, 754,850.70 and 203,906.40

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Solution

The fourth proportional to 503,622.60, 754,850.70 and 203,906.40 is: 305,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,622.60 : 754,850.70 = 203,906.40 : x
  2. Step 2: Convert to fraction form
    503,622.60/754,850.70 = 203,906.40/x
  3. Step 3: Cross multiply
    503,622.60x = 754,850.70 × 203,906.40
  4. Step 4: Simplify right side
    503,622.60x = 153,918,888,774.48
  5. Step 5: Solve for x
    x = 153,918,888,774.48/503,622.60
  6. Step 6: Final answer
    x = 305,623.47

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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.