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Finding the Fourth Proportional to 624,652.20, 862,009.74 and 338,169.96

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Solution

The fourth proportional to 624,652.20, 862,009.74 and 338,169.96 is: 466,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,652.20 : 862,009.74 = 338,169.96 : x
  2. Step 2: Convert to fraction form
    624,652.20/862,009.74 = 338,169.96/x
  3. Step 3: Cross multiply
    624,652.20x = 862,009.74 × 338,169.96
  4. Step 4: Simplify right side
    624,652.20x = 291,505,799,295.41
  5. Step 5: Solve for x
    x = 291,505,799,295.41/624,652.20
  6. Step 6: Final answer
    x = 466,668.97

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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.