Home / 1,095,563.24-1,511,738.32-642,689

Finding the Fourth Proportional to 1,095,563.24, 1,511,738.32 and 642,689

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Solution

The fourth proportional to 1,095,563.24, 1,511,738.32 and 642,689 is: 886,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,563.24 : 1,511,738.32 = 642,689 : x
  2. Step 2: Convert to fraction form
    1,095,563.24/1,511,738.32 = 642,689/x
  3. Step 3: Cross multiply
    1,095,563.24x = 1,511,738.32 × 642,689
  4. Step 4: Simplify right side
    1,095,563.24x = 971,577,589,142.48
  5. Step 5: Solve for x
    x = 971,577,589,142.48/1,095,563.24
  6. Step 6: Final answer
    x = 886,829.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.