Home / 1,086,415.40-1,629,623.10-661,262.60

Finding the Fourth Proportional to 1,086,415.40, 1,629,623.10 and 661,262.60

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Solution

The fourth proportional to 1,086,415.40, 1,629,623.10 and 661,262.60 is: 991,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,415.40 : 1,629,623.10 = 661,262.60 : x
  2. Step 2: Convert to fraction form
    1,086,415.40/1,629,623.10 = 661,262.60/x
  3. Step 3: Cross multiply
    1,086,415.40x = 1,629,623.10 × 661,262.60
  4. Step 4: Simplify right side
    1,086,415.40x = 1,077,608,808,126.06
  5. Step 5: Solve for x
    x = 1,077,608,808,126.06/1,086,415.40
  6. Step 6: Final answer
    x = 991,893.90

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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.