Home / 1,362,277.12-1,879,654.80-789,282.40

Finding the Fourth Proportional to 1,362,277.12, 1,879,654.80 and 789,282.40

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Solution

The fourth proportional to 1,362,277.12, 1,879,654.80 and 789,282.40 is: 1,089,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,277.12 : 1,879,654.80 = 789,282.40 : x
  2. Step 2: Convert to fraction form
    1,362,277.12/1,879,654.80 = 789,282.40/x
  3. Step 3: Cross multiply
    1,362,277.12x = 1,879,654.80 × 789,282.40
  4. Step 4: Simplify right side
    1,362,277.12x = 1,483,578,451,715.52
  5. Step 5: Solve for x
    x = 1,483,578,451,715.52/1,362,277.12
  6. Step 6: Final answer
    x = 1,089,043.07

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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.