Home / 1,298,317.75-1,791,684.44-709,629.32

Finding the Fourth Proportional to 1,298,317.75, 1,791,684.44 and 709,629.32

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Solution

The fourth proportional to 1,298,317.75, 1,791,684.44 and 709,629.32 is: 979,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,317.75 : 1,791,684.44 = 709,629.32 : x
  2. Step 2: Convert to fraction form
    1,298,317.75/1,791,684.44 = 709,629.32/x
  3. Step 3: Cross multiply
    1,298,317.75x = 1,791,684.44 × 709,629.32
  4. Step 4: Simplify right side
    1,298,317.75x = 1,271,431,810,811.78
  5. Step 5: Solve for x
    x = 1,271,431,810,811.78/1,298,317.75
  6. Step 6: Final answer
    x = 979,291.71

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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.