Home / 1,271,898.12-1,908,040.80-791,737.40

Finding the Fourth Proportional to 1,271,898.12, 1,908,040.80 and 791,737.40

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Solution

The fourth proportional to 1,271,898.12, 1,908,040.80 and 791,737.40 is: 1,187,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,898.12 : 1,908,040.80 = 791,737.40 : x
  2. Step 2: Convert to fraction form
    1,271,898.12/1,908,040.80 = 791,737.40/x
  3. Step 3: Cross multiply
    1,271,898.12x = 1,908,040.80 × 791,737.40
  4. Step 4: Simplify right side
    1,271,898.12x = 1,510,667,262,085.92
  5. Step 5: Solve for x
    x = 1,510,667,262,085.92/1,271,898.12
  6. Step 6: Final answer
    x = 1,187,726.63

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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.