Home / 1,313,487.12-1,967,379.48-806,509.20

Finding the Fourth Proportional to 1,313,487.12, 1,967,379.48 and 806,509.20

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Solution

The fourth proportional to 1,313,487.12, 1,967,379.48 and 806,509.20 is: 1,208,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,487.12 : 1,967,379.48 = 806,509.20 : x
  2. Step 2: Convert to fraction form
    1,313,487.12/1,967,379.48 = 806,509.20/x
  3. Step 3: Cross multiply
    1,313,487.12x = 1,967,379.48 × 806,509.20
  4. Step 4: Simplify right side
    1,313,487.12x = 1,586,709,650,511.22
  5. Step 5: Solve for x
    x = 1,586,709,650,511.22/1,313,487.12
  6. Step 6: Final answer
    x = 1,208,013.10

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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.