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Finding the Fourth Proportional to 329,117.20, 494,712.60 and 322,896.40

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Solution

The fourth proportional to 329,117.20, 494,712.60 and 322,896.40 is: 485,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,117.20 : 494,712.60 = 322,896.40 : x
  2. Step 2: Convert to fraction form
    329,117.20/494,712.60 = 322,896.40/x
  3. Step 3: Cross multiply
    329,117.20x = 494,712.60 × 322,896.40
  4. Step 4: Simplify right side
    329,117.20x = 159,740,917,574.64
  5. Step 5: Solve for x
    x = 159,740,917,574.64/329,117.20
  6. Step 6: Final answer
    x = 485,361.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.