Home / 1,205,049.24-1,662,911.82-661,172.76

Finding the Fourth Proportional to 1,205,049.24, 1,662,911.82 and 661,172.76

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Solution

The fourth proportional to 1,205,049.24, 1,662,911.82 and 661,172.76 is: 912,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,049.24 : 1,662,911.82 = 661,172.76 : x
  2. Step 2: Convert to fraction form
    1,205,049.24/1,662,911.82 = 661,172.76/x
  3. Step 3: Cross multiply
    1,205,049.24x = 1,662,911.82 × 661,172.76
  4. Step 4: Simplify right side
    1,205,049.24x = 1,099,471,997,666.02
  5. Step 5: Solve for x
    x = 1,099,471,997,666.02/1,205,049.24
  6. Step 6: Final answer
    x = 912,387.61

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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.