Home / 1,319,896.24-1,980,058.80-408,865.96

Finding the Fourth Proportional to 1,319,896.24, 1,980,058.80 and 408,865.96

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Solution

The fourth proportional to 1,319,896.24, 1,980,058.80 and 408,865.96 is: 613,365.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,896.24 : 1,980,058.80 = 408,865.96 : x
  2. Step 2: Convert to fraction form
    1,319,896.24/1,980,058.80 = 408,865.96/x
  3. Step 3: Cross multiply
    1,319,896.24x = 1,980,058.80 × 408,865.96
  4. Step 4: Simplify right side
    1,319,896.24x = 809,578,642,118.45
  5. Step 5: Solve for x
    x = 809,578,642,118.45/1,319,896.24
  6. Step 6: Final answer
    x = 613,365.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.