Home / 1,419,489.60-2,129,234.40-672,993.60

Finding the Fourth Proportional to 1,419,489.60, 2,129,234.40 and 672,993.60

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Solution

The fourth proportional to 1,419,489.60, 2,129,234.40 and 672,993.60 is: 1,009,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,489.60 : 2,129,234.40 = 672,993.60 : x
  2. Step 2: Convert to fraction form
    1,419,489.60/2,129,234.40 = 672,993.60/x
  3. Step 3: Cross multiply
    1,419,489.60x = 2,129,234.40 × 672,993.60
  4. Step 4: Simplify right side
    1,419,489.60x = 1,432,961,124,099.84
  5. Step 5: Solve for x
    x = 1,432,961,124,099.84/1,419,489.60
  6. Step 6: Final answer
    x = 1,009,490.40

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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.