Finding the Fourth Proportional to 1,431,143.49, 1,974,955.08 and 786,549.84
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Solution
The fourth proportional to 1,431,143.49, 1,974,955.08 and 786,549.84 is: 1,085,426.18
Step by Step Solution
- Step 1: Write the proportion equation
1,431,143.49 : 1,974,955.08 = 786,549.84 : x - Step 2: Convert to fraction form
1,431,143.49/1,974,955.08 = 786,549.84/x - Step 3: Cross multiply
1,431,143.49x = 1,974,955.08 × 786,549.84 - Step 4: Simplify right side
1,431,143.49x = 1,553,400,604,409.45 - Step 5: Solve for x
x = 1,553,400,604,409.45/1,431,143.49 - Step 6: Final answer
x = 1,085,426.18
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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.