Home / 863,647.22-1,295,190.14-287,115.74

Finding the Fourth Proportional to 863,647.22, 1,295,190.14 and 287,115.74

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Solution

The fourth proportional to 863,647.22, 1,295,190.14 and 287,115.74 is: 430,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,647.22 : 1,295,190.14 = 287,115.74 : x
  2. Step 2: Convert to fraction form
    863,647.22/1,295,190.14 = 287,115.74/x
  3. Step 3: Cross multiply
    863,647.22x = 1,295,190.14 × 287,115.74
  4. Step 4: Simplify right side
    863,647.22x = 371,869,475,486.80
  5. Step 5: Solve for x
    x = 371,869,475,486.80/863,647.22
  6. Step 6: Final answer
    x = 430,580.30

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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.