Home / 1,228,583.64-1,696,309.92-861,840.48

Finding the Fourth Proportional to 1,228,583.64, 1,696,309.92 and 861,840.48

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Solution

The fourth proportional to 1,228,583.64, 1,696,309.92 and 861,840.48 is: 1,189,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,583.64 : 1,696,309.92 = 861,840.48 : x
  2. Step 2: Convert to fraction form
    1,228,583.64/1,696,309.92 = 861,840.48/x
  3. Step 3: Cross multiply
    1,228,583.64x = 1,696,309.92 × 861,840.48
  4. Step 4: Simplify right side
    1,228,583.64x = 1,461,948,555,681.56
  5. Step 5: Solve for x
    x = 1,461,948,555,681.56/1,228,583.64
  6. Step 6: Final answer
    x = 1,189,946.30

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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.