Home / 1,319,633.40-1,821,115.26-716,021.40

Finding the Fourth Proportional to 1,319,633.40, 1,821,115.26 and 716,021.40

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Solution

The fourth proportional to 1,319,633.40, 1,821,115.26 and 716,021.40 is: 988,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,633.40 : 1,821,115.26 = 716,021.40 : x
  2. Step 2: Convert to fraction form
    1,319,633.40/1,821,115.26 = 716,021.40/x
  3. Step 3: Cross multiply
    1,319,633.40x = 1,821,115.26 × 716,021.40
  4. Step 4: Simplify right side
    1,319,633.40x = 1,303,957,498,026.56
  5. Step 5: Solve for x
    x = 1,303,957,498,026.56/1,319,633.40
  6. Step 6: Final answer
    x = 988,121.02

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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.