Finding the Fourth Proportional to 1,743,617.80, 2,405,889.30 and 979,703.56
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Solution
The fourth proportional to 1,743,617.80, 2,405,889.30 and 979,703.56 is: 1,351,820.51
Step by Step Solution
- Step 1: Write the proportion equation
1,743,617.80 : 2,405,889.30 = 979,703.56 : x - Step 2: Convert to fraction form
1,743,617.80/2,405,889.30 = 979,703.56/x - Step 3: Cross multiply
1,743,617.80x = 2,405,889.30 × 979,703.56 - Step 4: Simplify right side
1,743,617.80x = 2,357,058,312,175.91 - Step 5: Solve for x
x = 2,357,058,312,175.91/1,743,617.80 - Step 6: Final answer
x = 1,351,820.51
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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.