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Finding the Fourth Proportional to 386,467.20, 579,700.80 and 333,323.10

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Solution

The fourth proportional to 386,467.20, 579,700.80 and 333,323.10 is: 499,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,467.20 : 579,700.80 = 333,323.10 : x
  2. Step 2: Convert to fraction form
    386,467.20/579,700.80 = 333,323.10/x
  3. Step 3: Cross multiply
    386,467.20x = 579,700.80 × 333,323.10
  4. Step 4: Simplify right side
    386,467.20x = 193,227,667,728.48
  5. Step 5: Solve for x
    x = 193,227,667,728.48/386,467.20
  6. Step 6: Final answer
    x = 499,984.65

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Similar ratio
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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.