Home / 753,826-1,130,729.64-221,327.88

Finding the Fourth Proportional to 753,826, 1,130,729.64 and 221,327.88

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Solution

The fourth proportional to 753,826, 1,130,729.64 and 221,327.88 is: 331,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,826 : 1,130,729.64 = 221,327.88 : x
  2. Step 2: Convert to fraction form
    753,826/1,130,729.64 = 221,327.88/x
  3. Step 3: Cross multiply
    753,826x = 1,130,729.64 × 221,327.88
  4. Step 4: Simplify right side
    753,826x = 250,261,994,074.36
  5. Step 5: Solve for x
    x = 250,261,994,074.36/753,826
  6. Step 6: Final answer
    x = 331,989.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.