Home / 1,271,896.11-1,908,037.80-791,735.40

Finding the Fourth Proportional to 1,271,896.11, 1,908,037.80 and 791,735.40

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Solution

The fourth proportional to 1,271,896.11, 1,908,037.80 and 791,735.40 is: 1,187,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,896.11 : 1,908,037.80 = 791,735.40 : x
  2. Step 2: Convert to fraction form
    1,271,896.11/1,908,037.80 = 791,735.40/x
  3. Step 3: Cross multiply
    1,271,896.11x = 1,908,037.80 × 791,735.40
  4. Step 4: Simplify right side
    1,271,896.11x = 1,510,661,070,798.12
  5. Step 5: Solve for x
    x = 1,510,661,070,798.12/1,271,896.11
  6. Step 6: Final answer
    x = 1,187,723.63

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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.