Home / 840,968.72-1,261,619.52-308,494.40

Finding the Fourth Proportional to 840,968.72, 1,261,619.52 and 308,494.40

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Solution

The fourth proportional to 840,968.72, 1,261,619.52 and 308,494.40 is: 462,802.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,968.72 : 1,261,619.52 = 308,494.40 : x
  2. Step 2: Convert to fraction form
    840,968.72/1,261,619.52 = 308,494.40/x
  3. Step 3: Cross multiply
    840,968.72x = 1,261,619.52 × 308,494.40
  4. Step 4: Simplify right side
    840,968.72x = 389,202,556,850.69
  5. Step 5: Solve for x
    x = 389,202,556,850.69/840,968.72
  6. Step 6: Final answer
    x = 462,802.66

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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.