Home / 805,409.22-1,111,467.57-442,855.88

Finding the Fourth Proportional to 805,409.22, 1,111,467.57 and 442,855.88

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Solution

The fourth proportional to 805,409.22, 1,111,467.57 and 442,855.88 is: 611,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,409.22 : 1,111,467.57 = 442,855.88 : x
  2. Step 2: Convert to fraction form
    805,409.22/1,111,467.57 = 442,855.88/x
  3. Step 3: Cross multiply
    805,409.22x = 1,111,467.57 × 442,855.88
  4. Step 4: Simplify right side
    805,409.22x = 492,219,951,370.84
  5. Step 5: Solve for x
    x = 492,219,951,370.84/805,409.22
  6. Step 6: Final answer
    x = 611,142.68

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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.