Finding the Fourth Proportional to 1,450,128.06, 2,001,121.10 and 805,588.78
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Solution
The fourth proportional to 1,450,128.06, 2,001,121.10 and 805,588.78 is: 1,111,681.62
Step by Step Solution
- Step 1: Write the proportion equation
1,450,128.06 : 2,001,121.10 = 805,588.78 : x - Step 2: Convert to fraction form
1,450,128.06/2,001,121.10 = 805,588.78/x - Step 3: Cross multiply
1,450,128.06x = 2,001,121.10 × 805,588.78 - Step 4: Simplify right side
1,450,128.06x = 1,612,080,705,581.26 - Step 5: Solve for x
x = 1,612,080,705,581.26/1,450,128.06 - Step 6: Final answer
x = 1,111,681.62
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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.