Home / 1,603,955.81-2,212,717.05-1,420,381.46

Finding the Fourth Proportional to 1,603,955.81, 2,212,717.05 and 1,420,381.46

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Solution

The fourth proportional to 1,603,955.81, 2,212,717.05 and 1,420,381.46 is: 1,959,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,955.81 : 2,212,717.05 = 1,420,381.46 : x
  2. Step 2: Convert to fraction form
    1,603,955.81/2,212,717.05 = 1,420,381.46/x
  3. Step 3: Cross multiply
    1,603,955.81x = 2,212,717.05 × 1,420,381.46
  4. Step 4: Simplify right side
    1,603,955.81x = 3,142,902,267,131.15
  5. Step 5: Solve for x
    x = 3,142,902,267,131.15/1,603,955.81
  6. Step 6: Final answer
    x = 1,959,469.37

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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.