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Finding the Fourth Proportional to 460,721.71, 635,847.60 and 256,791.25

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Solution

The fourth proportional to 460,721.71, 635,847.60 and 256,791.25 is: 354,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,721.71 : 635,847.60 = 256,791.25 : x
  2. Step 2: Convert to fraction form
    460,721.71/635,847.60 = 256,791.25/x
  3. Step 3: Cross multiply
    460,721.71x = 635,847.60 × 256,791.25
  4. Step 4: Simplify right side
    460,721.71x = 163,280,100,013.50
  5. Step 5: Solve for x
    x = 163,280,100,013.50/460,721.71
  6. Step 6: Final answer
    x = 354,400.71

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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.