Home / 1,126,301.82-1,554,407.97-642,939.57

Finding the Fourth Proportional to 1,126,301.82, 1,554,407.97 and 642,939.57

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Solution

The fourth proportional to 1,126,301.82, 1,554,407.97 and 642,939.57 is: 887,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,301.82 : 1,554,407.97 = 642,939.57 : x
  2. Step 2: Convert to fraction form
    1,126,301.82/1,554,407.97 = 642,939.57/x
  3. Step 3: Cross multiply
    1,126,301.82x = 1,554,407.97 × 642,939.57
  4. Step 4: Simplify right side
    1,126,301.82x = 999,390,391,836.37
  5. Step 5: Solve for x
    x = 999,390,391,836.37/1,126,301.82
  6. Step 6: Final answer
    x = 887,320.23

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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.