Home / 1,378,329.66-1,901,816.20-805,259.11

Finding the Fourth Proportional to 1,378,329.66, 1,901,816.20 and 805,259.11

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Solution

The fourth proportional to 1,378,329.66, 1,901,816.20 and 805,259.11 is: 1,111,094.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,329.66 : 1,901,816.20 = 805,259.11 : x
  2. Step 2: Convert to fraction form
    1,378,329.66/1,901,816.20 = 805,259.11/x
  3. Step 3: Cross multiply
    1,378,329.66x = 1,901,816.20 × 805,259.11
  4. Step 4: Simplify right side
    1,378,329.66x = 1,531,454,826,093.71
  5. Step 5: Solve for x
    x = 1,531,454,826,093.71/1,378,329.66
  6. Step 6: Final answer
    x = 1,111,094.73

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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.