Home / 1,146,137.07-1,581,604.76-687,021.90

Finding the Fourth Proportional to 1,146,137.07, 1,581,604.76 and 687,021.90

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Solution

The fourth proportional to 1,146,137.07, 1,581,604.76 and 687,021.90 is: 948,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,137.07 : 1,581,604.76 = 687,021.90 : x
  2. Step 2: Convert to fraction form
    1,146,137.07/1,581,604.76 = 687,021.90/x
  3. Step 3: Cross multiply
    1,146,137.07x = 1,581,604.76 × 687,021.90
  4. Step 4: Simplify right side
    1,146,137.07x = 1,086,597,110,015.06
  5. Step 5: Solve for x
    x = 1,086,597,110,015.06/1,146,137.07
  6. Step 6: Final answer
    x = 948,051.63

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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.