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Finding the Fourth Proportional to 460,057.78, 634,904.10 and 256,126.48

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Solution

The fourth proportional to 460,057.78, 634,904.10 and 256,126.48 is: 353,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,057.78 : 634,904.10 = 256,126.48 : x
  2. Step 2: Convert to fraction form
    460,057.78/634,904.10 = 256,126.48/x
  3. Step 3: Cross multiply
    460,057.78x = 634,904.10 × 256,126.48
  4. Step 4: Simplify right side
    460,057.78x = 162,615,751,748.62
  5. Step 5: Solve for x
    x = 162,615,751,748.62/460,057.78
  6. Step 6: Final answer
    x = 353,468.11

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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.