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Finding the Fourth Proportional to 468,348.69, 646,336.86 and 287,025.60

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Solution

The fourth proportional to 468,348.69, 646,336.86 and 287,025.60 is: 396,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,348.69 : 646,336.86 = 287,025.60 : x
  2. Step 2: Convert to fraction form
    468,348.69/646,336.86 = 287,025.60/x
  3. Step 3: Cross multiply
    468,348.69x = 646,336.86 × 287,025.60
  4. Step 4: Simplify right side
    468,348.69x = 185,515,225,043.62
  5. Step 5: Solve for x
    x = 185,515,225,043.62/468,348.69
  6. Step 6: Final answer
    x = 396,104.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.