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Finding the Fourth Proportional to 630,469.20, 946,578.60 and 394,273.20

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Solution

The fourth proportional to 630,469.20, 946,578.60 and 394,273.20 is: 591,956.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,469.20 : 946,578.60 = 394,273.20 : x
  2. Step 2: Convert to fraction form
    630,469.20/946,578.60 = 394,273.20/x
  3. Step 3: Cross multiply
    630,469.20x = 946,578.60 × 394,273.20
  4. Step 4: Simplify right side
    630,469.20x = 373,210,573,673.52
  5. Step 5: Solve for x
    x = 373,210,573,673.52/630,469.20
  6. Step 6: Final answer
    x = 591,956.87

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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.