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Finding the Fourth Proportional to 460,670.42, 635,725.80 and 256,716.86

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Solution

The fourth proportional to 460,670.42, 635,725.80 and 256,716.86 is: 354,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,670.42 : 635,725.80 = 256,716.86 : x
  2. Step 2: Convert to fraction form
    460,670.42/635,725.80 = 256,716.86/x
  3. Step 3: Cross multiply
    460,670.42x = 635,725.80 × 256,716.86
  4. Step 4: Simplify right side
    460,670.42x = 163,201,531,196.99
  5. Step 5: Solve for x
    x = 163,201,531,196.99/460,670.42
  6. Step 6: Final answer
    x = 354,269.61

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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.