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Finding the Fourth Proportional to 492,661.62, 680,056.83 and 383,549.76

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Solution

The fourth proportional to 492,661.62, 680,056.83 and 383,549.76 is: 529,441.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,661.62 : 680,056.83 = 383,549.76 : x
  2. Step 2: Convert to fraction form
    492,661.62/680,056.83 = 383,549.76/x
  3. Step 3: Cross multiply
    492,661.62x = 680,056.83 × 383,549.76
  4. Step 4: Simplify right side
    492,661.62x = 260,835,633,932.86
  5. Step 5: Solve for x
    x = 260,835,633,932.86/492,661.62
  6. Step 6: Final answer
    x = 529,441.76

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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.