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Finding the Fourth Proportional to 611,769.50, 844,218.43 and 339,854.52

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Solution

The fourth proportional to 611,769.50, 844,218.43 and 339,854.52 is: 468,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,769.50 : 844,218.43 = 339,854.52 : x
  2. Step 2: Convert to fraction form
    611,769.50/844,218.43 = 339,854.52/x
  3. Step 3: Cross multiply
    611,769.50x = 844,218.43 × 339,854.52
  4. Step 4: Simplify right side
    611,769.50x = 286,911,449,302.80
  5. Step 5: Solve for x
    x = 286,911,449,302.80/611,769.50
  6. Step 6: Final answer
    x = 468,986.19

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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.