Home / 2,261,670.89-3,121,129.94-1,229,178.67

Finding the Fourth Proportional to 2,261,670.89, 3,121,129.94 and 1,229,178.67

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Solution

The fourth proportional to 2,261,670.89, 3,121,129.94 and 1,229,178.67 is: 1,696,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261,670.89 : 3,121,129.94 = 1,229,178.67 : x
  2. Step 2: Convert to fraction form
    2,261,670.89/3,121,129.94 = 1,229,178.67/x
  3. Step 3: Cross multiply
    2,261,670.89x = 3,121,129.94 × 1,229,178.67
  4. Step 4: Simplify right side
    2,261,670.89x = 3,836,426,334,597.66
  5. Step 5: Solve for x
    x = 3,836,426,334,597.66/2,261,670.89
  6. Step 6: Final answer
    x = 1,696,279.67

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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.