Home / 2,629,075.60-3,940,891.80-1,428,461.20

Finding the Fourth Proportional to 2,629,075.60, 3,940,891.80 and 1,428,461.20

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Solution

The fourth proportional to 2,629,075.60, 3,940,891.80 and 1,428,461.20 is: 2,141,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629,075.60 : 3,940,891.80 = 1,428,461.20 : x
  2. Step 2: Convert to fraction form
    2,629,075.60/3,940,891.80 = 1,428,461.20/x
  3. Step 3: Cross multiply
    2,629,075.60x = 3,940,891.80 × 1,428,461.20
  4. Step 4: Simplify right side
    2,629,075.60x = 5,629,411,029,698.16
  5. Step 5: Solve for x
    x = 5,629,411,029,698.16/2,629,075.60
  6. Step 6: Final answer
    x = 2,141,213.07

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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.