Home / 1,463,013.90-2,018,912.31-818,420.22

Finding the Fourth Proportional to 1,463,013.90, 2,018,912.31 and 818,420.22

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Solution

The fourth proportional to 1,463,013.90, 2,018,912.31 and 818,420.22 is: 1,129,393.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463,013.90 : 2,018,912.31 = 818,420.22 : x
  2. Step 2: Convert to fraction form
    1,463,013.90/2,018,912.31 = 818,420.22/x
  3. Step 3: Cross multiply
    1,463,013.90x = 2,018,912.31 × 818,420.22
  4. Step 4: Simplify right side
    1,463,013.90x = 1,652,318,656,910.91
  5. Step 5: Solve for x
    x = 1,652,318,656,910.91/1,463,013.90
  6. Step 6: Final answer
    x = 1,129,393.68

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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.