Home / 1,261,817.92-1,891,151.70-630,912.16

Finding the Fourth Proportional to 1,261,817.92, 1,891,151.70 and 630,912.16

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Solution

The fourth proportional to 1,261,817.92, 1,891,151.70 and 630,912.16 is: 945,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,817.92 : 1,891,151.70 = 630,912.16 : x
  2. Step 2: Convert to fraction form
    1,261,817.92/1,891,151.70 = 630,912.16/x
  3. Step 3: Cross multiply
    1,261,817.92x = 1,891,151.70 × 630,912.16
  4. Step 4: Simplify right side
    1,261,817.92x = 1,193,150,603,934.67
  5. Step 5: Solve for x
    x = 1,193,150,603,934.67/1,261,817.92
  6. Step 6: Final answer
    x = 945,580.65

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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.