Finding the Fourth Proportional to 1,368,943.51, 2,053,391.97 and 409,401.31
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Solution
The fourth proportional to 1,368,943.51, 2,053,391.97 and 409,401.31 is: 614,094.99
Step by Step Solution
- Step 1: Write the proportion equation
1,368,943.51 : 2,053,391.97 = 409,401.31 : x - Step 2: Convert to fraction form
1,368,943.51/2,053,391.97 = 409,401.31/x - Step 3: Cross multiply
1,368,943.51x = 2,053,391.97 × 409,401.31 - Step 4: Simplify right side
1,368,943.51x = 840,661,352,194.52 - Step 5: Solve for x
x = 840,661,352,194.52/1,368,943.51 - Step 6: Final answer
x = 614,094.99
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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.