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Finding the Fourth Proportional to 611,765.32, 844,371.08 and 339,926.64

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Solution

The fourth proportional to 611,765.32, 844,371.08 and 339,926.64 is: 469,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,765.32 : 844,371.08 = 339,926.64 : x
  2. Step 2: Convert to fraction form
    611,765.32/844,371.08 = 339,926.64/x
  3. Step 3: Cross multiply
    611,765.32x = 844,371.08 × 339,926.64
  4. Step 4: Simplify right side
    611,765.32x = 287,024,224,137.57
  5. Step 5: Solve for x
    x = 287,024,224,137.57/611,765.32
  6. Step 6: Final answer
    x = 469,173.74

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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.