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Finding the Fourth Proportional to 1,794,739.60, 2,476,748.40 and 978,960.82

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Solution

The fourth proportional to 1,794,739.60, 2,476,748.40 and 978,960.82 is: 1,350,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,794,739.60 : 2,476,748.40 = 978,960.82 : x
  2. Step 2: Convert to fraction form
    1,794,739.60/2,476,748.40 = 978,960.82/x
  3. Step 3: Cross multiply
    1,794,739.60x = 2,476,748.40 × 978,960.82
  4. Step 4: Simplify right side
    1,794,739.60x = 2,424,639,644,597.69
  5. Step 5: Solve for x
    x = 2,424,639,644,597.69/1,794,739.60
  6. Step 6: Final answer
    x = 1,350,970.16

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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.