Finding the Fourth Proportional to 1,220,555.38, 1,830,582.81 and 462,135.19
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Solution
The fourth proportional to 1,220,555.38, 1,830,582.81 and 462,135.19 is: 693,108.03
Step by Step Solution
- Step 1: Write the proportion equation
1,220,555.38 : 1,830,582.81 = 462,135.19 : x - Step 2: Convert to fraction form
1,220,555.38/1,830,582.81 = 462,135.19/x - Step 3: Cross multiply
1,220,555.38x = 1,830,582.81 × 462,135.19 - Step 4: Simplify right side
1,220,555.38x = 845,976,734,710.08 - Step 5: Solve for x
x = 845,976,734,710.08/1,220,555.38 - Step 6: Final answer
x = 693,108.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.