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Finding the Fourth Proportional to 474,659.40, 655,024.98 and 256,863.30

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Solution

The fourth proportional to 474,659.40, 655,024.98 and 256,863.30 is: 354,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,659.40 : 655,024.98 = 256,863.30 : x
  2. Step 2: Convert to fraction form
    474,659.40/655,024.98 = 256,863.30/x
  3. Step 3: Cross multiply
    474,659.40x = 655,024.98 × 256,863.30
  4. Step 4: Simplify right side
    474,659.40x = 168,251,877,945.23
  5. Step 5: Solve for x
    x = 168,251,877,945.23/474,659.40
  6. Step 6: Final answer
    x = 354,468.65

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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.