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Finding the Fourth Proportional to 519,394.53, 779,338.52 and 359,716.19

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Solution

The fourth proportional to 519,394.53, 779,338.52 and 359,716.19 is: 539,745.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,394.53 : 779,338.52 = 359,716.19 : x
  2. Step 2: Convert to fraction form
    519,394.53/779,338.52 = 359,716.19/x
  3. Step 3: Cross multiply
    519,394.53x = 779,338.52 × 359,716.19
  4. Step 4: Simplify right side
    519,394.53x = 280,340,679,237.95
  5. Step 5: Solve for x
    x = 280,340,679,237.95/519,394.53
  6. Step 6: Final answer
    x = 539,745.16

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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.