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Finding the Fourth Proportional to 659,942.70, 910,250.40 and 605,669.73

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Solution

The fourth proportional to 659,942.70, 910,250.40 and 605,669.73 is: 835,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,942.70 : 910,250.40 = 605,669.73 : x
  2. Step 2: Convert to fraction form
    659,942.70/910,250.40 = 605,669.73/x
  3. Step 3: Cross multiply
    659,942.70x = 910,250.40 × 605,669.73
  4. Step 4: Simplify right side
    659,942.70x = 551,311,114,000.39
  5. Step 5: Solve for x
    x = 551,311,114,000.39/659,942.70
  6. Step 6: Final answer
    x = 835,392.40

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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.