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Finding the Fourth Proportional to 630,511.90, 944,212.65 and 419,004.70

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Solution

The fourth proportional to 630,511.90, 944,212.65 and 419,004.70 is: 627,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,511.90 : 944,212.65 = 419,004.70 : x
  2. Step 2: Convert to fraction form
    630,511.90/944,212.65 = 419,004.70/x
  3. Step 3: Cross multiply
    630,511.90x = 944,212.65 × 419,004.70
  4. Step 4: Simplify right side
    630,511.90x = 395,629,538,149.46
  5. Step 5: Solve for x
    x = 395,629,538,149.46/630,511.90
  6. Step 6: Final answer
    x = 627,473.55

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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.