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Finding the Fourth Proportional to 721,554.94, 995,850.91 and 415,571.77

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Solution

The fourth proportional to 721,554.94, 995,850.91 and 415,571.77 is: 573,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,554.94 : 995,850.91 = 415,571.77 : x
  2. Step 2: Convert to fraction form
    721,554.94/995,850.91 = 415,571.77/x
  3. Step 3: Cross multiply
    721,554.94x = 995,850.91 × 415,571.77
  4. Step 4: Simplify right side
    721,554.94x = 413,847,519,149.84
  5. Step 5: Solve for x
    x = 413,847,519,149.84/721,554.94
  6. Step 6: Final answer
    x = 573,549.56

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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.