Home / 721,055.12-994,755.39-415,058.28

Finding the Fourth Proportional to 721,055.12, 994,755.39 and 415,058.28

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Solution

The fourth proportional to 721,055.12, 994,755.39 and 415,058.28 is: 572,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,055.12 : 994,755.39 = 415,058.28 : x
  2. Step 2: Convert to fraction form
    721,055.12/994,755.39 = 415,058.28/x
  3. Step 3: Cross multiply
    721,055.12x = 994,755.39 × 415,058.28
  4. Step 4: Simplify right side
    721,055.12x = 412,881,455,907.33
  5. Step 5: Solve for x
    x = 412,881,455,907.33/721,055.12
  6. Step 6: Final answer
    x = 572,607.35

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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.