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Finding the Fourth Proportional to 489,717.60, 733,701.60 and 419,733.60

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Solution

The fourth proportional to 489,717.60, 733,701.60 and 419,733.60 is: 628,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,717.60 : 733,701.60 = 419,733.60 : x
  2. Step 2: Convert to fraction form
    489,717.60/733,701.60 = 419,733.60/x
  3. Step 3: Cross multiply
    489,717.60x = 733,701.60 × 419,733.60
  4. Step 4: Simplify right side
    489,717.60x = 307,959,213,893.76
  5. Step 5: Solve for x
    x = 307,959,213,893.76/489,717.60
  6. Step 6: Final answer
    x = 628,850.61

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1.5x scale

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.