Home / 1,211,447.80-1,817,171.70-838,199.80

Finding the Fourth Proportional to 1,211,447.80, 1,817,171.70 and 838,199.80

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Solution

The fourth proportional to 1,211,447.80, 1,817,171.70 and 838,199.80 is: 1,257,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,447.80 : 1,817,171.70 = 838,199.80 : x
  2. Step 2: Convert to fraction form
    1,211,447.80/1,817,171.70 = 838,199.80/x
  3. Step 3: Cross multiply
    1,211,447.80x = 1,817,171.70 × 838,199.80
  4. Step 4: Simplify right side
    1,211,447.80x = 1,523,152,955,505.66
  5. Step 5: Solve for x
    x = 1,523,152,955,505.66/1,211,447.80
  6. Step 6: Final answer
    x = 1,257,299.70

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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.