Home / 1,408,969.05-1,944,381.05-764,389.25

Finding the Fourth Proportional to 1,408,969.05, 1,944,381.05 and 764,389.25

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Solution

The fourth proportional to 1,408,969.05, 1,944,381.05 and 764,389.25 is: 1,054,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,969.05 : 1,944,381.05 = 764,389.25 : x
  2. Step 2: Convert to fraction form
    1,408,969.05/1,944,381.05 = 764,389.25/x
  3. Step 3: Cross multiply
    1,408,969.05x = 1,944,381.05 × 764,389.25
  4. Step 4: Simplify right side
    1,408,969.05x = 1,486,263,972,070.31
  5. Step 5: Solve for x
    x = 1,486,263,972,070.31/1,408,969.05
  6. Step 6: Final answer
    x = 1,054,859.20

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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.