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Finding the Fourth Proportional to 474,520.38, 654,836.34 and 256,728.34

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Solution

The fourth proportional to 474,520.38, 654,836.34 and 256,728.34 is: 354,284.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,520.38 : 654,836.34 = 256,728.34 : x
  2. Step 2: Convert to fraction form
    474,520.38/654,836.34 = 256,728.34/x
  3. Step 3: Cross multiply
    474,520.38x = 654,836.34 × 256,728.34
  4. Step 4: Simplify right side
    474,520.38x = 168,115,046,539.88
  5. Step 5: Solve for x
    x = 168,115,046,539.88/474,520.38
  6. Step 6: Final answer
    x = 354,284.14

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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.