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Finding the Fourth Proportional to 630,793.62, 870,365.25 and 362,469.78

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Solution

The fourth proportional to 630,793.62, 870,365.25 and 362,469.78 is: 500,133.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,793.62 : 870,365.25 = 362,469.78 : x
  2. Step 2: Convert to fraction form
    630,793.62/870,365.25 = 362,469.78/x
  3. Step 3: Cross multiply
    630,793.62x = 870,365.25 × 362,469.78
  4. Step 4: Simplify right side
    630,793.62x = 315,481,100,687.15
  5. Step 5: Solve for x
    x = 315,481,100,687.15/630,793.62
  6. Step 6: Final answer
    x = 500,133.63

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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.