Home / 1,226,638.05-1,692,600.30-682,796.76

Finding the Fourth Proportional to 1,226,638.05, 1,692,600.30 and 682,796.76

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Solution

The fourth proportional to 1,226,638.05, 1,692,600.30 and 682,796.76 is: 942,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,638.05 : 1,692,600.30 = 682,796.76 : x
  2. Step 2: Convert to fraction form
    1,226,638.05/1,692,600.30 = 682,796.76/x
  3. Step 3: Cross multiply
    1,226,638.05x = 1,692,600.30 × 682,796.76
  4. Step 4: Simplify right side
    1,226,638.05x = 1,155,702,000,815.03
  5. Step 5: Solve for x
    x = 1,155,702,000,815.03/1,226,638.05
  6. Step 6: Final answer
    x = 942,170.35

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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.