Home / 784,408.94-1,082,438.83-440,212.72

Finding the Fourth Proportional to 784,408.94, 1,082,438.83 and 440,212.72

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Solution

The fourth proportional to 784,408.94, 1,082,438.83 and 440,212.72 is: 607,468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,408.94 : 1,082,438.83 = 440,212.72 : x
  2. Step 2: Convert to fraction form
    784,408.94/1,082,438.83 = 440,212.72/x
  3. Step 3: Cross multiply
    784,408.94x = 1,082,438.83 × 440,212.72
  4. Step 4: Simplify right side
    784,408.94x = 476,503,345,394.55
  5. Step 5: Solve for x
    x = 476,503,345,394.55/784,408.94
  6. Step 6: Final answer
    x = 607,468.02

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1.5x scale

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.