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Finding the Fourth Proportional to 666,463, 999,591.84 and 217,182.76

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Solution

The fourth proportional to 666,463, 999,591.84 and 217,182.76 is: 325,740.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,463 : 999,591.84 = 217,182.76 : x
  2. Step 2: Convert to fraction form
    666,463/999,591.84 = 217,182.76/x
  3. Step 3: Cross multiply
    666,463x = 999,591.84 × 217,182.76
  4. Step 4: Simplify right side
    666,463x = 217,094,114,684.68
  5. Step 5: Solve for x
    x = 217,094,114,684.68/666,463
  6. Step 6: Final answer
    x = 325,740.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.