Home / 1,317,888.36-1,818,192.42-774,041.40

Finding the Fourth Proportional to 1,317,888.36, 1,818,192.42 and 774,041.40

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Solution

The fourth proportional to 1,317,888.36, 1,818,192.42 and 774,041.40 is: 1,067,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,888.36 : 1,818,192.42 = 774,041.40 : x
  2. Step 2: Convert to fraction form
    1,317,888.36/1,818,192.42 = 774,041.40/x
  3. Step 3: Cross multiply
    1,317,888.36x = 1,818,192.42 × 774,041.40
  4. Step 4: Simplify right side
    1,317,888.36x = 1,407,356,206,246.19
  5. Step 5: Solve for x
    x = 1,407,356,206,246.19/1,317,888.36
  6. Step 6: Final answer
    x = 1,067,887.27

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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.