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Finding the Fourth Proportional to 605,325.90, 834,949.71 and 378,577.74

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Solution

The fourth proportional to 605,325.90, 834,949.71 and 378,577.74 is: 522,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,325.90 : 834,949.71 = 378,577.74 : x
  2. Step 2: Convert to fraction form
    605,325.90/834,949.71 = 378,577.74/x
  3. Step 3: Cross multiply
    605,325.90x = 834,949.71 × 378,577.74
  4. Step 4: Simplify right side
    605,325.90x = 316,093,374,225.46
  5. Step 5: Solve for x
    x = 316,093,374,225.46/605,325.90
  6. Step 6: Final answer
    x = 522,187.10

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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.