Home / 1,365,870.81-2,048,865.35-419,278.89

Finding the Fourth Proportional to 1,365,870.81, 2,048,865.35 and 419,278.89

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Solution

The fourth proportional to 1,365,870.81, 2,048,865.35 and 419,278.89 is: 628,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,870.81 : 2,048,865.35 = 419,278.89 : x
  2. Step 2: Convert to fraction form
    1,365,870.81/2,048,865.35 = 419,278.89/x
  3. Step 3: Cross multiply
    1,365,870.81x = 2,048,865.35 × 419,278.89
  4. Step 4: Simplify right side
    1,365,870.81x = 859,045,987,611.07
  5. Step 5: Solve for x
    x = 859,045,987,611.07/1,365,870.81
  6. Step 6: Final answer
    x = 628,936.49

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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.