Home / 1,260,605.81-1,890,925.13-419,157.56

Finding the Fourth Proportional to 1,260,605.81, 1,890,925.13 and 419,157.56

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Solution

The fourth proportional to 1,260,605.81, 1,890,925.13 and 419,157.56 is: 628,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,605.81 : 1,890,925.13 = 419,157.56 : x
  2. Step 2: Convert to fraction form
    1,260,605.81/1,890,925.13 = 419,157.56/x
  3. Step 3: Cross multiply
    1,260,605.81x = 1,890,925.13 × 419,157.56
  4. Step 4: Simplify right side
    1,260,605.81x = 792,595,569,408.69
  5. Step 5: Solve for x
    x = 792,595,569,408.69/1,260,605.81
  6. Step 6: Final answer
    x = 628,741.80

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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.