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Finding the Fourth Proportional to 640,830.06, 961,310.82 and 241,806.60

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Solution

The fourth proportional to 640,830.06, 961,310.82 and 241,806.60 is: 362,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,830.06 : 961,310.82 = 241,806.60 : x
  2. Step 2: Convert to fraction form
    640,830.06/961,310.82 = 241,806.60/x
  3. Step 3: Cross multiply
    640,830.06x = 961,310.82 × 241,806.60
  4. Step 4: Simplify right side
    640,830.06x = 232,451,300,927.41
  5. Step 5: Solve for x
    x = 232,451,300,927.41/640,830.06
  6. Step 6: Final answer
    x = 362,734.70

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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.