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Finding the Fourth Proportional to 721,764.60, 995,684.34 and 476,845.44

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Solution

The fourth proportional to 721,764.60, 995,684.34 and 476,845.44 is: 657,814.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,764.60 : 995,684.34 = 476,845.44 : x
  2. Step 2: Convert to fraction form
    721,764.60/995,684.34 = 476,845.44/x
  3. Step 3: Cross multiply
    721,764.60x = 995,684.34 × 476,845.44
  4. Step 4: Simplify right side
    721,764.60x = 474,787,537,208.41
  5. Step 5: Solve for x
    x = 474,787,537,208.41/721,764.60
  6. Step 6: Final answer
    x = 657,814.94

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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.