Home / 1,808,018.80-2,712,028.20-1,388,114.80

Finding the Fourth Proportional to 1,808,018.80, 2,712,028.20 and 1,388,114.80

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Solution

The fourth proportional to 1,808,018.80, 2,712,028.20 and 1,388,114.80 is: 2,082,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808,018.80 : 2,712,028.20 = 1,388,114.80 : x
  2. Step 2: Convert to fraction form
    1,808,018.80/2,712,028.20 = 1,388,114.80/x
  3. Step 3: Cross multiply
    1,808,018.80x = 2,712,028.20 × 1,388,114.80
  4. Step 4: Simplify right side
    1,808,018.80x = 3,764,606,482,437.36
  5. Step 5: Solve for x
    x = 3,764,606,482,437.36/1,808,018.80
  6. Step 6: Final answer
    x = 2,082,172.20

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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.