Home / 1,340,620.40-2,009,764.20-807,575.60

Finding the Fourth Proportional to 1,340,620.40, 2,009,764.20 and 807,575.60

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Solution

The fourth proportional to 1,340,620.40, 2,009,764.20 and 807,575.60 is: 1,210,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,620.40 : 2,009,764.20 = 807,575.60 : x
  2. Step 2: Convert to fraction form
    1,340,620.40/2,009,764.20 = 807,575.60/x
  3. Step 3: Cross multiply
    1,340,620.40x = 2,009,764.20 × 807,575.60
  4. Step 4: Simplify right side
    1,340,620.40x = 1,623,036,529,673.52
  5. Step 5: Solve for x
    x = 1,623,036,529,673.52/1,340,620.40
  6. Step 6: Final answer
    x = 1,210,660.77

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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.