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Finding the Fourth Proportional to 850,375, 1,173,517.50 and 468,400.60

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Solution

The fourth proportional to 850,375, 1,173,517.50 and 468,400.60 is: 646,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,375 : 1,173,517.50 = 468,400.60 : x
  2. Step 2: Convert to fraction form
    850,375/1,173,517.50 = 468,400.60/x
  3. Step 3: Cross multiply
    850,375x = 1,173,517.50 × 468,400.60
  4. Step 4: Simplify right side
    850,375x = 549,676,301,110.50
  5. Step 5: Solve for x
    x = 549,676,301,110.50/850,375
  6. Step 6: Final answer
    x = 646,392.83

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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.