Home / 1,226,987.76-1,692,902.52-791,220.72

Finding the Fourth Proportional to 1,226,987.76, 1,692,902.52 and 791,220.72

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Solution

The fourth proportional to 1,226,987.76, 1,692,902.52 and 791,220.72 is: 1,091,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,987.76 : 1,692,902.52 = 791,220.72 : x
  2. Step 2: Convert to fraction form
    1,226,987.76/1,692,902.52 = 791,220.72/x
  3. Step 3: Cross multiply
    1,226,987.76x = 1,692,902.52 × 791,220.72
  4. Step 4: Simplify right side
    1,226,987.76x = 1,339,459,550,764.21
  5. Step 5: Solve for x
    x = 1,339,459,550,764.21/1,226,987.76
  6. Step 6: Final answer
    x = 1,091,664.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.