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Finding the Fourth Proportional to 605,700, 908,593.76 and 245,697.96

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Solution

The fourth proportional to 605,700, 908,593.76 and 245,697.96 is: 368,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,700 : 908,593.76 = 245,697.96 : x
  2. Step 2: Convert to fraction form
    605,700/908,593.76 = 245,697.96/x
  3. Step 3: Cross multiply
    605,700x = 908,593.76 × 245,697.96
  4. Step 4: Simplify right side
    605,700x = 223,239,633,300.73
  5. Step 5: Solve for x
    x = 223,239,633,300.73/605,700
  6. Step 6: Final answer
    x = 368,564.69

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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.