Home / 1,310,999.10-1,966,563.45-681,143.10

Finding the Fourth Proportional to 1,310,999.10, 1,966,563.45 and 681,143.10

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Solution

The fourth proportional to 1,310,999.10, 1,966,563.45 and 681,143.10 is: 1,021,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,999.10 : 1,966,563.45 = 681,143.10 : x
  2. Step 2: Convert to fraction form
    1,310,999.10/1,966,563.45 = 681,143.10/x
  3. Step 3: Cross multiply
    1,310,999.10x = 1,966,563.45 × 681,143.10
  4. Step 4: Simplify right side
    1,310,999.10x = 1,339,511,124,679.69
  5. Step 5: Solve for x
    x = 1,339,511,124,679.69/1,310,999.10
  6. Step 6: Final answer
    x = 1,021,748.32

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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.