Home / 1,998,557.33-2,758,909.79-1,274,378.45

Finding the Fourth Proportional to 1,998,557.33, 2,758,909.79 and 1,274,378.45

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Solution

The fourth proportional to 1,998,557.33, 2,758,909.79 and 1,274,378.45 is: 1,759,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,557.33 : 2,758,909.79 = 1,274,378.45 : x
  2. Step 2: Convert to fraction form
    1,998,557.33/2,758,909.79 = 1,274,378.45/x
  3. Step 3: Cross multiply
    1,998,557.33x = 2,758,909.79 × 1,274,378.45
  4. Step 4: Simplify right side
    1,998,557.33x = 3,515,895,171,261.42
  5. Step 5: Solve for x
    x = 3,515,895,171,261.42/1,998,557.33
  6. Step 6: Final answer
    x = 1,759,216.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.