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Finding the Fourth Proportional to 668,815.76, 922,992.36 and 367,020.56

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Solution

The fourth proportional to 668,815.76, 922,992.36 and 367,020.56 is: 506,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,815.76 : 922,992.36 = 367,020.56 : x
  2. Step 2: Convert to fraction form
    668,815.76/922,992.36 = 367,020.56/x
  3. Step 3: Cross multiply
    668,815.76x = 922,992.36 × 367,020.56
  4. Step 4: Simplify right side
    668,815.76x = 338,757,172,842.92
  5. Step 5: Solve for x
    x = 338,757,172,842.92/668,815.76
  6. Step 6: Final answer
    x = 506,502.98

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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.