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Finding the Fourth Proportional to 1,301,282, 1,795,809.84 and 728,321.12

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Solution

The fourth proportional to 1,301,282, 1,795,809.84 and 728,321.12 is: 1,005,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,282 : 1,795,809.84 = 728,321.12 : x
  2. Step 2: Convert to fraction form
    1,301,282/1,795,809.84 = 728,321.12/x
  3. Step 3: Cross multiply
    1,301,282x = 1,795,809.84 × 728,321.12
  4. Step 4: Simplify right side
    1,301,282x = 1,307,926,233,975.82
  5. Step 5: Solve for x
    x = 1,307,926,233,975.82/1,301,282
  6. Step 6: Final answer
    x = 1,005,105.91

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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.