Finding the Fourth Proportional to 1,989,929.80, 2,746,112.22 and 1,130,537.21
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Solution
The fourth proportional to 1,989,929.80, 2,746,112.22 and 1,130,537.21 is: 1,560,146.52
Step by Step Solution
- Step 1: Write the proportion equation
1,989,929.80 : 2,746,112.22 = 1,130,537.21 : x - Step 2: Convert to fraction form
1,989,929.80/2,746,112.22 = 1,130,537.21/x - Step 3: Cross multiply
1,989,929.80x = 2,746,112.22 × 1,130,537.21 - Step 4: Simplify right side
1,989,929.80x = 3,104,582,047,545.71 - Step 5: Solve for x
x = 3,104,582,047,545.71/1,989,929.80 - Step 6: Final answer
x = 1,560,146.52
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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.