Home / 1,378,386.94-1,901,895.24-805,316.41

Finding the Fourth Proportional to 1,378,386.94, 1,901,895.24 and 805,316.41

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Solution

The fourth proportional to 1,378,386.94, 1,901,895.24 and 805,316.41 is: 1,111,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,386.94 : 1,901,895.24 = 805,316.41 : x
  2. Step 2: Convert to fraction form
    1,378,386.94/1,901,895.24 = 805,316.41/x
  3. Step 3: Cross multiply
    1,378,386.94x = 1,901,895.24 × 805,316.41
  4. Step 4: Simplify right side
    1,378,386.94x = 1,531,627,446,872.89
  5. Step 5: Solve for x
    x = 1,531,627,446,872.89/1,378,386.94
  6. Step 6: Final answer
    x = 1,111,173.79

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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.