Home / 1,228,840.64-1,696,120.80-800,296.64

Finding the Fourth Proportional to 1,228,840.64, 1,696,120.80 and 800,296.64

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Solution

The fourth proportional to 1,228,840.64, 1,696,120.80 and 800,296.64 is: 1,104,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,840.64 : 1,696,120.80 = 800,296.64 : x
  2. Step 2: Convert to fraction form
    1,228,840.64/1,696,120.80 = 800,296.64/x
  3. Step 3: Cross multiply
    1,228,840.64x = 1,696,120.80 × 800,296.64
  4. Step 4: Simplify right side
    1,228,840.64x = 1,357,399,777,274.11
  5. Step 5: Solve for x
    x = 1,357,399,777,274.11/1,228,840.64
  6. Step 6: Final answer
    x = 1,104,618.23

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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.