Home / 1,388,416.20-2,082,624.30-828,544.20

Finding the Fourth Proportional to 1,388,416.20, 2,082,624.30 and 828,544.20

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Solution

The fourth proportional to 1,388,416.20, 2,082,624.30 and 828,544.20 is: 1,242,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,416.20 : 2,082,624.30 = 828,544.20 : x
  2. Step 2: Convert to fraction form
    1,388,416.20/2,082,624.30 = 828,544.20/x
  3. Step 3: Cross multiply
    1,388,416.20x = 2,082,624.30 × 828,544.20
  4. Step 4: Simplify right side
    1,388,416.20x = 1,725,546,284,544.06
  5. Step 5: Solve for x
    x = 1,725,546,284,544.06/1,388,416.20
  6. Step 6: Final answer
    x = 1,242,816.30

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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.