Home / 1,210,986-1,671,212.52-674,442

Finding the Fourth Proportional to 1,210,986, 1,671,212.52 and 674,442

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Solution

The fourth proportional to 1,210,986, 1,671,212.52 and 674,442 is: 930,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,986 : 1,671,212.52 = 674,442 : x
  2. Step 2: Convert to fraction form
    1,210,986/1,671,212.52 = 674,442/x
  3. Step 3: Cross multiply
    1,210,986x = 1,671,212.52 × 674,442
  4. Step 4: Simplify right side
    1,210,986x = 1,127,135,914,413.84
  5. Step 5: Solve for x
    x = 1,127,135,914,413.84/1,210,986
  6. Step 6: Final answer
    x = 930,758.83

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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.