Home / 1,320,067.35-1,980,084.30-421,497.69

Finding the Fourth Proportional to 1,320,067.35, 1,980,084.30 and 421,497.69

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Solution

The fourth proportional to 1,320,067.35, 1,980,084.30 and 421,497.69 is: 632,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,067.35 : 1,980,084.30 = 421,497.69 : x
  2. Step 2: Convert to fraction form
    1,320,067.35/1,980,084.30 = 421,497.69/x
  3. Step 3: Cross multiply
    1,320,067.35x = 1,980,084.30 × 421,497.69
  4. Step 4: Simplify right side
    1,320,067.35x = 834,600,958,455.27
  5. Step 5: Solve for x
    x = 834,600,958,455.27/1,320,067.35
  6. Step 6: Final answer
    x = 632,241.19

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1.5x scale

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.