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Finding the Fourth Proportional to 496,346.76, 680,497.08 and 487,378.64

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Solution

The fourth proportional to 496,346.76, 680,497.08 and 487,378.64 is: 668,201.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,346.76 : 680,497.08 = 487,378.64 : x
  2. Step 2: Convert to fraction form
    496,346.76/680,497.08 = 487,378.64/x
  3. Step 3: Cross multiply
    496,346.76x = 680,497.08 × 487,378.64
  4. Step 4: Simplify right side
    496,346.76x = 331,659,741,374.37
  5. Step 5: Solve for x
    x = 331,659,741,374.37/496,346.76
  6. Step 6: Final answer
    x = 668,201.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.