Home / 1,392,823.91-2,089,236.54-919,398.62

Finding the Fourth Proportional to 1,392,823.91, 2,089,236.54 and 919,398.62

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Solution

The fourth proportional to 1,392,823.91, 2,089,236.54 and 919,398.62 is: 1,379,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,823.91 : 2,089,236.54 = 919,398.62 : x
  2. Step 2: Convert to fraction form
    1,392,823.91/2,089,236.54 = 919,398.62/x
  3. Step 3: Cross multiply
    1,392,823.91x = 2,089,236.54 × 919,398.62
  4. Step 4: Simplify right side
    1,392,823.91x = 1,920,841,181,283.39
  5. Step 5: Solve for x
    x = 1,920,841,181,283.39/1,392,823.91
  6. Step 6: Final answer
    x = 1,379,098.37

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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.