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Finding the Fourth Proportional to 422,382.48, 633,801.30 and 306,989.52

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Solution

The fourth proportional to 422,382.48, 633,801.30 and 306,989.52 is: 460,649.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,382.48 : 633,801.30 = 306,989.52 : x
  2. Step 2: Convert to fraction form
    422,382.48/633,801.30 = 306,989.52/x
  3. Step 3: Cross multiply
    422,382.48x = 633,801.30 × 306,989.52
  4. Step 4: Simplify right side
    422,382.48x = 194,570,355,327.43
  5. Step 5: Solve for x
    x = 194,570,355,327.43/422,382.48
  6. Step 6: Final answer
    x = 460,649.69

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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.