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Finding the Fourth Proportional to 611,096.88, 843,322.86 and 339,182.40

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Solution

The fourth proportional to 611,096.88, 843,322.86 and 339,182.40 is: 468,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,096.88 : 843,322.86 = 339,182.40 : x
  2. Step 2: Convert to fraction form
    611,096.88/843,322.86 = 339,182.40/x
  3. Step 3: Cross multiply
    611,096.88x = 843,322.86 × 339,182.40
  4. Step 4: Simplify right side
    611,096.88x = 286,040,271,629.66
  5. Step 5: Solve for x
    x = 286,040,271,629.66/611,096.88
  6. Step 6: Final answer
    x = 468,076.80

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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.