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Finding the Fourth Proportional to 519,629.61, 779,690.52 and 359,951.34

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Solution

The fourth proportional to 519,629.61, 779,690.52 and 359,951.34 is: 540,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,629.61 : 779,690.52 = 359,951.34 : x
  2. Step 2: Convert to fraction form
    519,629.61/779,690.52 = 359,951.34/x
  3. Step 3: Cross multiply
    519,629.61x = 779,690.52 × 359,951.34
  4. Step 4: Simplify right side
    519,629.61x = 280,650,647,459.30
  5. Step 5: Solve for x
    x = 280,650,647,459.30/519,629.61
  6. Step 6: Final answer
    x = 540,097.49

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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.