Home / 1,076,041.44-1,485,114.72-820,910.88

Finding the Fourth Proportional to 1,076,041.44, 1,485,114.72 and 820,910.88

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Solution

The fourth proportional to 1,076,041.44, 1,485,114.72 and 820,910.88 is: 1,132,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,041.44 : 1,485,114.72 = 820,910.88 : x
  2. Step 2: Convert to fraction form
    1,076,041.44/1,485,114.72 = 820,910.88/x
  3. Step 3: Cross multiply
    1,076,041.44x = 1,485,114.72 × 820,910.88
  4. Step 4: Simplify right side
    1,076,041.44x = 1,219,146,831,696.15
  5. Step 5: Solve for x
    x = 1,219,146,831,696.15/1,076,041.44
  6. Step 6: Final answer
    x = 1,132,992.45

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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.