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Finding the Fourth Proportional to 627,262.42, 940,751.78 and 290,118.08

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Solution

The fourth proportional to 627,262.42, 940,751.78 and 290,118.08 is: 435,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,262.42 : 940,751.78 = 290,118.08 : x
  2. Step 2: Convert to fraction form
    627,262.42/940,751.78 = 290,118.08/x
  3. Step 3: Cross multiply
    627,262.42x = 940,751.78 × 290,118.08
  4. Step 4: Simplify right side
    627,262.42x = 272,929,100,170.18
  5. Step 5: Solve for x
    x = 272,929,100,170.18/627,262.42
  6. Step 6: Final answer
    x = 435,111.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.