Home / 1,222,430.39-1,686,922.82-671,143.37

Finding the Fourth Proportional to 1,222,430.39, 1,686,922.82 and 671,143.37

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Solution

The fourth proportional to 1,222,430.39, 1,686,922.82 and 671,143.37 is: 926,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,430.39 : 1,686,922.82 = 671,143.37 : x
  2. Step 2: Convert to fraction form
    1,222,430.39/1,686,922.82 = 671,143.37/x
  3. Step 3: Cross multiply
    1,222,430.39x = 1,686,922.82 × 671,143.37
  4. Step 4: Simplify right side
    1,222,430.39x = 1,132,167,066,344.70
  5. Step 5: Solve for x
    x = 1,132,167,066,344.70/1,222,430.39
  6. Step 6: Final answer
    x = 926,160.77

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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.