Home / 1,423,648-1,964,619.44-811,900.40

Finding the Fourth Proportional to 1,423,648, 1,964,619.44 and 811,900.40

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Solution

The fourth proportional to 1,423,648, 1,964,619.44 and 811,900.40 is: 1,120,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,648 : 1,964,619.44 = 811,900.40 : x
  2. Step 2: Convert to fraction form
    1,423,648/1,964,619.44 = 811,900.40/x
  3. Step 3: Cross multiply
    1,423,648x = 1,964,619.44 × 811,900.40
  4. Step 4: Simplify right side
    1,423,648x = 1,595,075,309,183.78
  5. Step 5: Solve for x
    x = 1,595,075,309,183.78/1,423,648
  6. Step 6: Final answer
    x = 1,120,414.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.