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Finding the Fourth Proportional to 467,325.64, 644,485.98 and 306,121.87

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Solution

The fourth proportional to 467,325.64, 644,485.98 and 306,121.87 is: 422,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,325.64 : 644,485.98 = 306,121.87 : x
  2. Step 2: Convert to fraction form
    467,325.64/644,485.98 = 306,121.87/x
  3. Step 3: Cross multiply
    467,325.64x = 644,485.98 × 306,121.87
  4. Step 4: Simplify right side
    467,325.64x = 197,291,253,386.38
  5. Step 5: Solve for x
    x = 197,291,253,386.38/467,325.64
  6. Step 6: Final answer
    x = 422,170.83

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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.