Home / 1,393,145.28-2,089,362.42-433,413.36

Finding the Fourth Proportional to 1,393,145.28, 2,089,362.42 and 433,413.36

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Solution

The fourth proportional to 1,393,145.28, 2,089,362.42 and 433,413.36 is: 650,009.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,145.28 : 2,089,362.42 = 433,413.36 : x
  2. Step 2: Convert to fraction form
    1,393,145.28/2,089,362.42 = 433,413.36/x
  3. Step 3: Cross multiply
    1,393,145.28x = 2,089,362.42 × 433,413.36
  4. Step 4: Simplify right side
    1,393,145.28x = 905,557,586,709.93
  5. Step 5: Solve for x
    x = 905,557,586,709.93/1,393,145.28
  6. Step 6: Final answer
    x = 650,009.44

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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.