Home / 1,378,274.19-1,901,853.03-766,273.29

Finding the Fourth Proportional to 1,378,274.19, 1,901,853.03 and 766,273.29

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Solution

The fourth proportional to 1,378,274.19, 1,901,853.03 and 766,273.29 is: 1,057,365.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,274.19 : 1,901,853.03 = 766,273.29 : x
  2. Step 2: Convert to fraction form
    1,378,274.19/1,901,853.03 = 766,273.29/x
  3. Step 3: Cross multiply
    1,378,274.19x = 1,901,853.03 × 766,273.29
  4. Step 4: Simplify right side
    1,378,274.19x = 1,457,339,178,394.57
  5. Step 5: Solve for x
    x = 1,457,339,178,394.57/1,378,274.19
  6. Step 6: Final answer
    x = 1,057,365.21

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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.