Home / 721,069.08-994,964.80-415,086.34

Finding the Fourth Proportional to 721,069.08, 994,964.80 and 415,086.34

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Solution

The fourth proportional to 721,069.08, 994,964.80 and 415,086.34 is: 572,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,069.08 : 994,964.80 = 415,086.34 : x
  2. Step 2: Convert to fraction form
    721,069.08/994,964.80 = 415,086.34/x
  3. Step 3: Cross multiply
    721,069.08x = 994,964.80 × 415,086.34
  4. Step 4: Simplify right side
    721,069.08x = 412,996,297,260.83
  5. Step 5: Solve for x
    x = 412,996,297,260.83/721,069.08
  6. Step 6: Final answer
    x = 572,755.52

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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.