Home / 1,228,601.64-1,696,334.76-861,858.48

Finding the Fourth Proportional to 1,228,601.64, 1,696,334.76 and 861,858.48

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Solution

The fourth proportional to 1,228,601.64, 1,696,334.76 and 861,858.48 is: 1,189,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,601.64 : 1,696,334.76 = 861,858.48 : x
  2. Step 2: Convert to fraction form
    1,228,601.64/1,696,334.76 = 861,858.48/x
  3. Step 3: Cross multiply
    1,228,601.64x = 1,696,334.76 × 861,858.48
  4. Step 4: Simplify right side
    1,228,601.64x = 1,462,000,497,824.77
  5. Step 5: Solve for x
    x = 1,462,000,497,824.77/1,228,601.64
  6. Step 6: Final answer
    x = 1,189,971.14

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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.