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Finding the Fourth Proportional to 721,356.60, 995,293.26 and 466,401

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Solution

The fourth proportional to 721,356.60, 995,293.26 and 466,401 is: 643,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,356.60 : 995,293.26 = 466,401 : x
  2. Step 2: Convert to fraction form
    721,356.60/995,293.26 = 466,401/x
  3. Step 3: Cross multiply
    721,356.60x = 995,293.26 × 466,401
  4. Step 4: Simplify right side
    721,356.60x = 464,205,771,757.26
  5. Step 5: Solve for x
    x = 464,205,771,757.26/721,356.60
  6. Step 6: Final answer
    x = 643,517.74

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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.