Home / 909,113.31-1,363,669.94-863,654.09

Finding the Fourth Proportional to 909,113.31, 1,363,669.94 and 863,654.09

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Solution

The fourth proportional to 909,113.31, 1,363,669.94 and 863,654.09 is: 1,295,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,113.31 : 1,363,669.94 = 863,654.09 : x
  2. Step 2: Convert to fraction form
    909,113.31/1,363,669.94 = 863,654.09/x
  3. Step 3: Cross multiply
    909,113.31x = 1,363,669.94 × 863,654.09
  4. Step 4: Simplify right side
    909,113.31x = 1,177,739,109,954.43
  5. Step 5: Solve for x
    x = 1,177,739,109,954.43/909,113.31
  6. Step 6: Final answer
    x = 1,295,481.10

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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.