Home / 1,378,561.73-1,902,133.59-805,491.14

Finding the Fourth Proportional to 1,378,561.73, 1,902,133.59 and 805,491.14

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Solution

The fourth proportional to 1,378,561.73, 1,902,133.59 and 805,491.14 is: 1,111,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,561.73 : 1,902,133.59 = 805,491.14 : x
  2. Step 2: Convert to fraction form
    1,378,561.73/1,902,133.59 = 805,491.14/x
  3. Step 3: Cross multiply
    1,378,561.73x = 1,902,133.59 × 805,491.14
  4. Step 4: Simplify right side
    1,378,561.73x = 1,532,151,744,330.73
  5. Step 5: Solve for x
    x = 1,532,151,744,330.73/1,378,561.73
  6. Step 6: Final answer
    x = 1,111,413.23

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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.