Home / 1,408,104.36-2,108,131.38-1,318,721.64

Finding the Fourth Proportional to 1,408,104.36, 2,108,131.38 and 1,318,721.64

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Solution

The fourth proportional to 1,408,104.36, 2,108,131.38 and 1,318,721.64 is: 1,974,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,104.36 : 2,108,131.38 = 1,318,721.64 : x
  2. Step 2: Convert to fraction form
    1,408,104.36/2,108,131.38 = 1,318,721.64/x
  3. Step 3: Cross multiply
    1,408,104.36x = 2,108,131.38 × 1,318,721.64
  4. Step 4: Simplify right side
    1,408,104.36x = 2,780,038,470,769.06
  5. Step 5: Solve for x
    x = 2,780,038,470,769.06/1,408,104.36
  6. Step 6: Final answer
    x = 1,974,312.81

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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.