Finding the Fourth Proportional to 1,222,726.44, 1,686,189.84 and 786,698.76
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Solution
The fourth proportional to 1,222,726.44, 1,686,189.84 and 786,698.76 is: 1,084,889.81
Step by Step Solution
- Step 1: Write the proportion equation
1,222,726.44 : 1,686,189.84 = 786,698.76 : x - Step 2: Convert to fraction form
1,222,726.44/1,686,189.84 = 786,698.76/x - Step 3: Cross multiply
1,222,726.44x = 1,686,189.84 × 786,698.76 - Step 4: Simplify right side
1,222,726.44x = 1,326,523,456,252.60 - Step 5: Solve for x
x = 1,326,523,456,252.60/1,222,726.44 - Step 6: Final answer
x = 1,084,889.81
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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.