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Finding the Fourth Proportional to 668,335.32, 922,351.60 and 381,849.24

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Solution

The fourth proportional to 668,335.32, 922,351.60 and 381,849.24 is: 526,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,335.32 : 922,351.60 = 381,849.24 : x
  2. Step 2: Convert to fraction form
    668,335.32/922,351.60 = 381,849.24/x
  3. Step 3: Cross multiply
    668,335.32x = 922,351.60 × 381,849.24
  4. Step 4: Simplify right side
    668,335.32x = 352,199,257,472.78
  5. Step 5: Solve for x
    x = 352,199,257,472.78/668,335.32
  6. Step 6: Final answer
    x = 526,979.87

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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.