Home / 1,319,436.37-1,819,883.33-1,210,891.31

Finding the Fourth Proportional to 1,319,436.37, 1,819,883.33 and 1,210,891.31

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Solution

The fourth proportional to 1,319,436.37, 1,819,883.33 and 1,210,891.31 is: 1,670,168.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,436.37 : 1,819,883.33 = 1,210,891.31 : x
  2. Step 2: Convert to fraction form
    1,319,436.37/1,819,883.33 = 1,210,891.31/x
  3. Step 3: Cross multiply
    1,319,436.37x = 1,819,883.33 × 1,210,891.31
  4. Step 4: Simplify right side
    1,319,436.37x = 2,203,680,905,722.39
  5. Step 5: Solve for x
    x = 2,203,680,905,722.39/1,319,436.37
  6. Step 6: Final answer
    x = 1,670,168.38

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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.