Home / 1,401,438.36-1,933,935.50-789,719.42

Finding the Fourth Proportional to 1,401,438.36, 1,933,935.50 and 789,719.42

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Solution

The fourth proportional to 1,401,438.36, 1,933,935.50 and 789,719.42 is: 1,089,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,438.36 : 1,933,935.50 = 789,719.42 : x
  2. Step 2: Convert to fraction form
    1,401,438.36/1,933,935.50 = 789,719.42/x
  3. Step 3: Cross multiply
    1,401,438.36x = 1,933,935.50 × 789,719.42
  4. Step 4: Simplify right side
    1,401,438.36x = 1,527,266,423,744.38
  5. Step 5: Solve for x
    x = 1,527,266,423,744.38/1,401,438.36
  6. Step 6: Final answer
    x = 1,089,784.94

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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.