Home / 1,626,239.37-2,439,137.61-428,061.36

Finding the Fourth Proportional to 1,626,239.37, 2,439,137.61 and 428,061.36

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Solution

The fourth proportional to 1,626,239.37, 2,439,137.61 and 428,061.36 is: 642,033.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,239.37 : 2,439,137.61 = 428,061.36 : x
  2. Step 2: Convert to fraction form
    1,626,239.37/2,439,137.61 = 428,061.36/x
  3. Step 3: Cross multiply
    1,626,239.37x = 2,439,137.61 × 428,061.36
  4. Step 4: Simplify right side
    1,626,239.37x = 1,044,100,562,563.75
  5. Step 5: Solve for x
    x = 1,044,100,562,563.75/1,626,239.37
  6. Step 6: Final answer
    x = 642,033.75

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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.