Home / 1,419,486.75-2,129,565.75-459,940.77

Finding the Fourth Proportional to 1,419,486.75, 2,129,565.75 and 459,940.77

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Solution

The fourth proportional to 1,419,486.75, 2,129,565.75 and 459,940.77 is: 690,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,486.75 : 2,129,565.75 = 459,940.77 : x
  2. Step 2: Convert to fraction form
    1,419,486.75/2,129,565.75 = 459,940.77/x
  3. Step 3: Cross multiply
    1,419,486.75x = 2,129,565.75 × 459,940.77
  4. Step 4: Simplify right side
    1,419,486.75x = 979,474,110,820.63
  5. Step 5: Solve for x
    x = 979,474,110,820.63/1,419,486.75
  6. Step 6: Final answer
    x = 690,019.90

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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.