Home / 1,819,686.72-2,731,895.28-1,399,257.76

Finding the Fourth Proportional to 1,819,686.72, 2,731,895.28 and 1,399,257.76

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Solution

The fourth proportional to 1,819,686.72, 2,731,895.28 and 1,399,257.76 is: 2,100,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,686.72 : 2,731,895.28 = 1,399,257.76 : x
  2. Step 2: Convert to fraction form
    1,819,686.72/2,731,895.28 = 1,399,257.76/x
  3. Step 3: Cross multiply
    1,819,686.72x = 2,731,895.28 × 1,399,257.76
  4. Step 4: Simplify right side
    1,819,686.72x = 3,822,625,670,047.37
  5. Step 5: Solve for x
    x = 3,822,625,670,047.37/1,819,686.72
  6. Step 6: Final answer
    x = 2,100,705.37

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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.