Home / 1,420,429.94-1,960,181.67-775,850.54

Finding the Fourth Proportional to 1,420,429.94, 1,960,181.67 and 775,850.54

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Solution

The fourth proportional to 1,420,429.94, 1,960,181.67 and 775,850.54 is: 1,070,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,429.94 : 1,960,181.67 = 775,850.54 : x
  2. Step 2: Convert to fraction form
    1,420,429.94/1,960,181.67 = 775,850.54/x
  3. Step 3: Cross multiply
    1,420,429.94x = 1,960,181.67 × 775,850.54
  4. Step 4: Simplify right side
    1,420,429.94x = 1,520,808,007,167.60
  5. Step 5: Solve for x
    x = 1,520,808,007,167.60/1,420,429.94
  6. Step 6: Final answer
    x = 1,070,667.38

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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.