Home / 1,288,906.75-1,778,692.26-708,167.33

Finding the Fourth Proportional to 1,288,906.75, 1,778,692.26 and 708,167.33

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Solution

The fourth proportional to 1,288,906.75, 1,778,692.26 and 708,167.33 is: 977,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,906.75 : 1,778,692.26 = 708,167.33 : x
  2. Step 2: Convert to fraction form
    1,288,906.75/1,778,692.26 = 708,167.33/x
  3. Step 3: Cross multiply
    1,288,906.75x = 1,778,692.26 × 708,167.33
  4. Step 4: Simplify right side
    1,288,906.75x = 1,259,611,748,655.87
  5. Step 5: Solve for x
    x = 1,259,611,748,655.87/1,288,906.75
  6. Step 6: Final answer
    x = 977,271.43

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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.