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Finding the Fourth Proportional to 1,361,964.80, 2,039,836.80 and 802,092.80

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Solution

The fourth proportional to 1,361,964.80, 2,039,836.80 and 802,092.80 is: 1,201,307.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,964.80 : 2,039,836.80 = 802,092.80 : x
  2. Step 2: Convert to fraction form
    1,361,964.80/2,039,836.80 = 802,092.80/x
  3. Step 3: Cross multiply
    1,361,964.80x = 2,039,836.80 × 802,092.80
  4. Step 4: Simplify right side
    1,361,964.80x = 1,636,138,410,455.04
  5. Step 5: Solve for x
    x = 1,636,138,410,455.04/1,361,964.80
  6. Step 6: Final answer
    x = 1,201,307.41

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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.