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Finding the Fourth Proportional to 668,648.76, 922,751.50 and 366,842.76

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Solution

The fourth proportional to 668,648.76, 922,751.50 and 366,842.76 is: 506,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,648.76 : 922,751.50 = 366,842.76 : x
  2. Step 2: Convert to fraction form
    668,648.76/922,751.50 = 366,842.76/x
  3. Step 3: Cross multiply
    668,648.76x = 922,751.50 × 366,842.76
  4. Step 4: Simplify right side
    668,648.76x = 338,504,707,054.14
  5. Step 5: Solve for x
    x = 338,504,707,054.14/668,648.76
  6. Step 6: Final answer
    x = 506,251.90

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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.