Home / 721,331.72-995,448.25-415,463.02

Finding the Fourth Proportional to 721,331.72, 995,448.25 and 415,463.02

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Solution

The fourth proportional to 721,331.72, 995,448.25 and 415,463.02 is: 573,345.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,331.72 : 995,448.25 = 415,463.02 : x
  2. Step 2: Convert to fraction form
    721,331.72/995,448.25 = 415,463.02/x
  3. Step 3: Cross multiply
    721,331.72x = 995,448.25 × 415,463.02
  4. Step 4: Simplify right side
    721,331.72x = 413,571,938,076.09
  5. Step 5: Solve for x
    x = 413,571,938,076.09/721,331.72
  6. Step 6: Final answer
    x = 573,345.01

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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.