Home / 1,205,020.24-1,662,871.80-661,143.76

Finding the Fourth Proportional to 1,205,020.24, 1,662,871.80 and 661,143.76

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Solution

The fourth proportional to 1,205,020.24, 1,662,871.80 and 661,143.76 is: 912,347.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,020.24 : 1,662,871.80 = 661,143.76 : x
  2. Step 2: Convert to fraction form
    1,205,020.24/1,662,871.80 = 661,143.76/x
  3. Step 3: Cross multiply
    1,205,020.24x = 1,662,871.80 × 661,143.76
  4. Step 4: Simplify right side
    1,205,020.24x = 1,099,397,314,249.97
  5. Step 5: Solve for x
    x = 1,099,397,314,249.97/1,205,020.24
  6. Step 6: Final answer
    x = 912,347.59

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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.