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Finding the Fourth Proportional to 721,333.22, 995,450.31 and 415,464.53

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Solution

The fourth proportional to 721,333.22, 995,450.31 and 415,464.53 is: 573,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,333.22 : 995,450.31 = 415,464.53 : x
  2. Step 2: Convert to fraction form
    721,333.22/995,450.31 = 415,464.53/x
  3. Step 3: Cross multiply
    721,333.22x = 995,450.31 × 415,464.53
  4. Step 4: Simplify right side
    721,333.22x = 413,574,290,205.25
  5. Step 5: Solve for x
    x = 413,574,290,205.25/721,333.22
  6. Step 6: Final answer
    x = 573,347.08

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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.