Finding the Fourth Proportional to 1,220,304.51, 1,683,450.68 and 767,844.99
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Solution
The fourth proportional to 1,220,304.51, 1,683,450.68 and 767,844.99 is: 1,059,267.71
Step by Step Solution
- Step 1: Write the proportion equation
1,220,304.51 : 1,683,450.68 = 767,844.99 : x - Step 2: Convert to fraction form
1,220,304.51/1,683,450.68 = 767,844.99/x - Step 3: Cross multiply
1,220,304.51x = 1,683,450.68 × 767,844.99 - Step 4: Simplify right side
1,220,304.51x = 1,292,629,166,710.87 - Step 5: Solve for x
x = 1,292,629,166,710.87/1,220,304.51 - Step 6: Final answer
x = 1,059,267.71
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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.