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Finding the Fourth Proportional to 664,475.70, 916,657.65 and 482,906.10

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Solution

The fourth proportional to 664,475.70, 916,657.65 and 482,906.10 is: 666,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,475.70 : 916,657.65 = 482,906.10 : x
  2. Step 2: Convert to fraction form
    664,475.70/916,657.65 = 482,906.10/x
  3. Step 3: Cross multiply
    664,475.70x = 916,657.65 × 482,906.10
  4. Step 4: Simplify right side
    664,475.70x = 442,659,570,796.67
  5. Step 5: Solve for x
    x = 442,659,570,796.67/664,475.70
  6. Step 6: Final answer
    x = 666,178.72

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1.5x scale

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.