Home / 1,811,705.70-2,722,807.35-1,780,212.90

Finding the Fourth Proportional to 1,811,705.70, 2,722,807.35 and 1,780,212.90

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Solution

The fourth proportional to 1,811,705.70, 2,722,807.35 and 1,780,212.90 is: 2,675,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,705.70 : 2,722,807.35 = 1,780,212.90 : x
  2. Step 2: Convert to fraction form
    1,811,705.70/2,722,807.35 = 1,780,212.90/x
  3. Step 3: Cross multiply
    1,811,705.70x = 2,722,807.35 × 1,780,212.90
  4. Step 4: Simplify right side
    1,811,705.70x = 4,847,176,768,684.81
  5. Step 5: Solve for x
    x = 4,847,176,768,684.81/1,811,705.70
  6. Step 6: Final answer
    x = 2,675,476.91

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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.