Home / 2,138,384.98-2,950,970.25-1,278,945.22

Finding the Fourth Proportional to 2,138,384.98, 2,950,970.25 and 1,278,945.22

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Solution

The fourth proportional to 2,138,384.98, 2,950,970.25 and 1,278,945.22 is: 1,764,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,384.98 : 2,950,970.25 = 1,278,945.22 : x
  2. Step 2: Convert to fraction form
    2,138,384.98/2,950,970.25 = 1,278,945.22/x
  3. Step 3: Cross multiply
    2,138,384.98x = 2,950,970.25 × 1,278,945.22
  4. Step 4: Simplify right side
    2,138,384.98x = 3,774,129,295,599.71
  5. Step 5: Solve for x
    x = 3,774,129,295,599.71/2,138,384.98
  6. Step 6: Final answer
    x = 1,764,943.79

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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.