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Finding the Fourth Proportional to 460,198.71, 635,270.19 and 309,383.19

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Solution

The fourth proportional to 460,198.71, 635,270.19 and 309,383.19 is: 427,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,198.71 : 635,270.19 = 309,383.19 : x
  2. Step 2: Convert to fraction form
    460,198.71/635,270.19 = 309,383.19/x
  3. Step 3: Cross multiply
    460,198.71x = 635,270.19 × 309,383.19
  4. Step 4: Simplify right side
    460,198.71x = 196,541,917,894.11
  5. Step 5: Solve for x
    x = 196,541,917,894.11/460,198.71
  6. Step 6: Final answer
    x = 427,080.55

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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.