Home / 1,260,840.45-1,739,951.24-716,976.21

Finding the Fourth Proportional to 1,260,840.45, 1,739,951.24 and 716,976.21

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Solution

The fourth proportional to 1,260,840.45, 1,739,951.24 and 716,976.21 is: 989,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,840.45 : 1,739,951.24 = 716,976.21 : x
  2. Step 2: Convert to fraction form
    1,260,840.45/1,739,951.24 = 716,976.21/x
  3. Step 3: Cross multiply
    1,260,840.45x = 1,739,951.24 × 716,976.21
  4. Step 4: Simplify right side
    1,260,840.45x = 1,247,503,642,055.12
  5. Step 5: Solve for x
    x = 1,247,503,642,055.12/1,260,840.45
  6. Step 6: Final answer
    x = 989,422.29

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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.