Home / 1,287,301.36-1,776,495.36-714,378.64

Finding the Fourth Proportional to 1,287,301.36, 1,776,495.36 and 714,378.64

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Solution

The fourth proportional to 1,287,301.36, 1,776,495.36 and 714,378.64 is: 985,853.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,301.36 : 1,776,495.36 = 714,378.64 : x
  2. Step 2: Convert to fraction form
    1,287,301.36/1,776,495.36 = 714,378.64/x
  3. Step 3: Cross multiply
    1,287,301.36x = 1,776,495.36 × 714,378.64
  4. Step 4: Simplify right side
    1,287,301.36x = 1,269,090,339,243.11
  5. Step 5: Solve for x
    x = 1,269,090,339,243.11/1,287,301.36
  6. Step 6: Final answer
    x = 985,853.34

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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.