Home / 1,443,090.75-1,991,329.65-976,996.53

Finding the Fourth Proportional to 1,443,090.75, 1,991,329.65 and 976,996.53

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Solution

The fourth proportional to 1,443,090.75, 1,991,329.65 and 976,996.53 is: 1,348,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,090.75 : 1,991,329.65 = 976,996.53 : x
  2. Step 2: Convert to fraction form
    1,443,090.75/1,991,329.65 = 976,996.53/x
  3. Step 3: Cross multiply
    1,443,090.75x = 1,991,329.65 × 976,996.53
  4. Step 4: Simplify right side
    1,443,090.75x = 1,945,522,158,136.11
  5. Step 5: Solve for x
    x = 1,945,522,158,136.11/1,443,090.75
  6. Step 6: Final answer
    x = 1,348,163.42

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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.