Home / 1,213,891.20-1,819,670.40-943,869.60

Finding the Fourth Proportional to 1,213,891.20, 1,819,670.40 and 943,869.60

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Solution

The fourth proportional to 1,213,891.20, 1,819,670.40 and 943,869.60 is: 1,414,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,891.20 : 1,819,670.40 = 943,869.60 : x
  2. Step 2: Convert to fraction form
    1,213,891.20/1,819,670.40 = 943,869.60/x
  3. Step 3: Cross multiply
    1,213,891.20x = 1,819,670.40 × 943,869.60
  4. Step 4: Simplify right side
    1,213,891.20x = 1,717,531,572,579.84
  5. Step 5: Solve for x
    x = 1,717,531,572,579.84/1,213,891.20
  6. Step 6: Final answer
    x = 1,414,897.46

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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.