Home / 831,846.31-1,147,668.75-678,619.62

Finding the Fourth Proportional to 831,846.31, 1,147,668.75 and 678,619.62

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Solution

The fourth proportional to 831,846.31, 1,147,668.75 and 678,619.62 is: 936,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,846.31 : 1,147,668.75 = 678,619.62 : x
  2. Step 2: Convert to fraction form
    831,846.31/1,147,668.75 = 678,619.62/x
  3. Step 3: Cross multiply
    831,846.31x = 1,147,668.75 × 678,619.62
  4. Step 4: Simplify right side
    831,846.31x = 778,830,531,010.88
  5. Step 5: Solve for x
    x = 778,830,531,010.88/831,846.31
  6. Step 6: Final answer
    x = 936,267.34

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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.