Home / 1,271,234.68-1,752,866.22-811,745.08

Finding the Fourth Proportional to 1,271,234.68, 1,752,866.22 and 811,745.08

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Solution

The fourth proportional to 1,271,234.68, 1,752,866.22 and 811,745.08 is: 1,119,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,234.68 : 1,752,866.22 = 811,745.08 : x
  2. Step 2: Convert to fraction form
    1,271,234.68/1,752,866.22 = 811,745.08/x
  3. Step 3: Cross multiply
    1,271,234.68x = 1,752,866.22 × 811,745.08
  4. Step 4: Simplify right side
    1,271,234.68x = 1,422,880,529,983.20
  5. Step 5: Solve for x
    x = 1,422,880,529,983.20/1,271,234.68
  6. Step 6: Final answer
    x = 1,119,290.21

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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.