Home / 1,298,111.14-1,791,501.24-717,447.65

Finding the Fourth Proportional to 1,298,111.14, 1,791,501.24 and 717,447.65

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Solution

The fourth proportional to 1,298,111.14, 1,791,501.24 and 717,447.65 is: 990,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,111.14 : 1,791,501.24 = 717,447.65 : x
  2. Step 2: Convert to fraction form
    1,298,111.14/1,791,501.24 = 717,447.65/x
  3. Step 3: Cross multiply
    1,298,111.14x = 1,791,501.24 × 717,447.65
  4. Step 4: Simplify right side
    1,298,111.14x = 1,285,308,354,610.09
  5. Step 5: Solve for x
    x = 1,285,308,354,610.09/1,298,111.14
  6. Step 6: Final answer
    x = 990,137.37

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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.