Home / 1,040,129.60-1,561,360.80-804,516.80

Finding the Fourth Proportional to 1,040,129.60, 1,561,360.80 and 804,516.80

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Solution

The fourth proportional to 1,040,129.60, 1,561,360.80 and 804,516.80 is: 1,207,677.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,129.60 : 1,561,360.80 = 804,516.80 : x
  2. Step 2: Convert to fraction form
    1,040,129.60/1,561,360.80 = 804,516.80/x
  3. Step 3: Cross multiply
    1,040,129.60x = 1,561,360.80 × 804,516.80
  4. Step 4: Simplify right side
    1,040,129.60x = 1,256,140,994,461.44
  5. Step 5: Solve for x
    x = 1,256,140,994,461.44/1,040,129.60
  6. Step 6: Final answer
    x = 1,207,677.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.