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Finding the Fourth Proportional to 611,907.68, 844,492.56 and 353,795.60

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Solution

The fourth proportional to 611,907.68, 844,492.56 and 353,795.60 is: 488,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,907.68 : 844,492.56 = 353,795.60 : x
  2. Step 2: Convert to fraction form
    611,907.68/844,492.56 = 353,795.60/x
  3. Step 3: Cross multiply
    611,907.68x = 844,492.56 × 353,795.60
  4. Step 4: Simplify right side
    611,907.68x = 298,777,751,960.74
  5. Step 5: Solve for x
    x = 298,777,751,960.74/611,907.68
  6. Step 6: Final answer
    x = 488,272.60

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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.