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Finding the Fourth Proportional to 1,407,828.60, 1,942,778.14 and 795,970.80

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Solution

The fourth proportional to 1,407,828.60, 1,942,778.14 and 795,970.80 is: 1,098,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,828.60 : 1,942,778.14 = 795,970.80 : x
  2. Step 2: Convert to fraction form
    1,407,828.60/1,942,778.14 = 795,970.80/x
  3. Step 3: Cross multiply
    1,407,828.60x = 1,942,778.14 × 795,970.80
  4. Step 4: Simplify right side
    1,407,828.60x = 1,546,394,670,318.31
  5. Step 5: Solve for x
    x = 1,546,394,670,318.31/1,407,828.60
  6. Step 6: Final answer
    x = 1,098,425.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.