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Finding the Fourth Proportional to 611,597.88, 844,129.26 and 353,485.80

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Solution

The fourth proportional to 611,597.88, 844,129.26 and 353,485.80 is: 487,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,597.88 : 844,129.26 = 353,485.80 : x
  2. Step 2: Convert to fraction form
    611,597.88/844,129.26 = 353,485.80/x
  3. Step 3: Cross multiply
    611,597.88x = 844,129.26 × 353,485.80
  4. Step 4: Simplify right side
    611,597.88x = 298,387,706,774.51
  5. Step 5: Solve for x
    x = 298,387,706,774.51/611,597.88
  6. Step 6: Final answer
    x = 487,882.18

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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.