Home / 753,912.12-1,040,385.30-414,380.28

Finding the Fourth Proportional to 753,912.12, 1,040,385.30 and 414,380.28

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Solution

The fourth proportional to 753,912.12, 1,040,385.30 and 414,380.28 is: 571,837.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,912.12 : 1,040,385.30 = 414,380.28 : x
  2. Step 2: Convert to fraction form
    753,912.12/1,040,385.30 = 414,380.28/x
  3. Step 3: Cross multiply
    753,912.12x = 1,040,385.30 × 414,380.28
  4. Step 4: Simplify right side
    753,912.12x = 431,115,151,921.88
  5. Step 5: Solve for x
    x = 431,115,151,921.88/753,912.12
  6. Step 6: Final answer
    x = 571,837.41

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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.