Home / 1,071,420.72-1,479,556.44-690,102.96

Finding the Fourth Proportional to 1,071,420.72, 1,479,556.44 and 690,102.96

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Solution

The fourth proportional to 1,071,420.72, 1,479,556.44 and 690,102.96 is: 952,983.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,420.72 : 1,479,556.44 = 690,102.96 : x
  2. Step 2: Convert to fraction form
    1,071,420.72/1,479,556.44 = 690,102.96/x
  3. Step 3: Cross multiply
    1,071,420.72x = 1,479,556.44 × 690,102.96
  4. Step 4: Simplify right side
    1,071,420.72x = 1,021,046,278,731.06
  5. Step 5: Solve for x
    x = 1,021,046,278,731.06/1,071,420.72
  6. Step 6: Final answer
    x = 952,983.51

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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.