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Finding the Fourth Proportional to 611,441.25, 843,788.93 and 343,169.25

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Solution

The fourth proportional to 611,441.25, 843,788.93 and 343,169.25 is: 473,573.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,441.25 : 843,788.93 = 343,169.25 : x
  2. Step 2: Convert to fraction form
    611,441.25/843,788.93 = 343,169.25/x
  3. Step 3: Cross multiply
    611,441.25x = 843,788.93 × 343,169.25
  4. Step 4: Simplify right side
    611,441.25x = 289,562,414,266.40
  5. Step 5: Solve for x
    x = 289,562,414,266.40/611,441.25
  6. Step 6: Final answer
    x = 473,573.57

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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.