Home / 1,811,206.10-2,716,809.15-1,279,765.10

Finding the Fourth Proportional to 1,811,206.10, 2,716,809.15 and 1,279,765.10

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Solution

The fourth proportional to 1,811,206.10, 2,716,809.15 and 1,279,765.10 is: 1,919,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,206.10 : 2,716,809.15 = 1,279,765.10 : x
  2. Step 2: Convert to fraction form
    1,811,206.10/2,716,809.15 = 1,279,765.10/x
  3. Step 3: Cross multiply
    1,811,206.10x = 2,716,809.15 × 1,279,765.10
  4. Step 4: Simplify right side
    1,811,206.10x = 3,476,877,533,530.67
  5. Step 5: Solve for x
    x = 3,476,877,533,530.67/1,811,206.10
  6. Step 6: Final answer
    x = 1,919,647.65

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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.