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Finding the Fourth Proportional to 611,993.12, 844,308.51 and 353,822.63

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Solution

The fourth proportional to 611,993.12, 844,308.51 and 353,822.63 is: 488,135.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,993.12 : 844,308.51 = 353,822.63 : x
  2. Step 2: Convert to fraction form
    611,993.12/844,308.51 = 353,822.63/x
  3. Step 3: Cross multiply
    611,993.12x = 844,308.51 × 353,822.63
  4. Step 4: Simplify right side
    611,993.12x = 298,735,457,539.58
  5. Step 5: Solve for x
    x = 298,735,457,539.58/611,993.12
  6. Step 6: Final answer
    x = 488,135.32

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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.