Home / 1,203,985.12-1,661,490.64-660,111.94

Finding the Fourth Proportional to 1,203,985.12, 1,661,490.64 and 660,111.94

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Solution

The fourth proportional to 1,203,985.12, 1,661,490.64 and 660,111.94 is: 910,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,985.12 : 1,661,490.64 = 660,111.94 : x
  2. Step 2: Convert to fraction form
    1,203,985.12/1,661,490.64 = 660,111.94/x
  3. Step 3: Cross multiply
    1,203,985.12x = 1,661,490.64 × 660,111.94
  4. Step 4: Simplify right side
    1,203,985.12x = 1,096,769,809,662.24
  5. Step 5: Solve for x
    x = 1,096,769,809,662.24/1,203,985.12
  6. Step 6: Final answer
    x = 910,949.64

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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.