Home / 1,819,205.70-2,728,808.55-620,948.40

Finding the Fourth Proportional to 1,819,205.70, 2,728,808.55 and 620,948.40

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Solution

The fourth proportional to 1,819,205.70, 2,728,808.55 and 620,948.40 is: 931,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,205.70 : 2,728,808.55 = 620,948.40 : x
  2. Step 2: Convert to fraction form
    1,819,205.70/2,728,808.55 = 620,948.40/x
  3. Step 3: Cross multiply
    1,819,205.70x = 2,728,808.55 × 620,948.40
  4. Step 4: Simplify right side
    1,819,205.70x = 1,694,449,303,028.82
  5. Step 5: Solve for x
    x = 1,694,449,303,028.82/1,819,205.70
  6. Step 6: Final answer
    x = 931,422.60

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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.