Home / 2,166,381-2,989,708.47-1,306,922.82

Finding the Fourth Proportional to 2,166,381, 2,989,708.47 and 1,306,922.82

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Solution

The fourth proportional to 2,166,381, 2,989,708.47 and 1,306,922.82 is: 1,803,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,381 : 2,989,708.47 = 1,306,922.82 : x
  2. Step 2: Convert to fraction form
    2,166,381/2,989,708.47 = 1,306,922.82/x
  3. Step 3: Cross multiply
    2,166,381x = 2,989,708.47 × 1,306,922.82
  4. Step 4: Simplify right side
    2,166,381x = 3,907,318,224,590.29
  5. Step 5: Solve for x
    x = 3,907,318,224,590.29/2,166,381
  6. Step 6: Final answer
    x = 1,803,615.44

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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.