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Finding the Fourth Proportional to 379,753.64, 524,074.02 and 245,617.64

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Solution

The fourth proportional to 379,753.64, 524,074.02 and 245,617.64 is: 338,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,753.64 : 524,074.02 = 245,617.64 : x
  2. Step 2: Convert to fraction form
    379,753.64/524,074.02 = 245,617.64/x
  3. Step 3: Cross multiply
    379,753.64x = 524,074.02 × 245,617.64
  4. Step 4: Simplify right side
    379,753.64x = 128,721,823,977.71
  5. Step 5: Solve for x
    x = 128,721,823,977.71/379,753.64
  6. Step 6: Final answer
    x = 338,961.40

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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.