Home / 4,678,989.26-7,019,075.54-1,605,578.81

Finding the Fourth Proportional to 4,678,989.26, 7,019,075.54 and 1,605,578.81

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Solution

The fourth proportional to 4,678,989.26, 7,019,075.54 and 1,605,578.81 is: 2,408,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,989.26 : 7,019,075.54 = 1,605,578.81 : x
  2. Step 2: Convert to fraction form
    4,678,989.26/7,019,075.54 = 1,605,578.81/x
  3. Step 3: Cross multiply
    4,678,989.26x = 7,019,075.54 × 1,605,578.81
  4. Step 4: Simplify right side
    4,678,989.26x = 11,269,678,962,333.10
  5. Step 5: Solve for x
    x = 11,269,678,962,333.10/4,678,989.26
  6. Step 6: Final answer
    x = 2,408,571.24

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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.