Home / 1,276,698.41-1,912,656.48-1,145,245.13

Finding the Fourth Proportional to 1,276,698.41, 1,912,656.48 and 1,145,245.13

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Solution

The fourth proportional to 1,276,698.41, 1,912,656.48 and 1,145,245.13 is: 1,715,722.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,698.41 : 1,912,656.48 = 1,145,245.13 : x
  2. Step 2: Convert to fraction form
    1,276,698.41/1,912,656.48 = 1,145,245.13/x
  3. Step 3: Cross multiply
    1,276,698.41x = 1,912,656.48 × 1,145,245.13
  4. Step 4: Simplify right side
    1,276,698.41x = 2,190,460,509,519.66
  5. Step 5: Solve for x
    x = 2,190,460,509,519.66/1,276,698.41
  6. Step 6: Final answer
    x = 1,715,722.76

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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.