Finding the Fourth Proportional to 1,114,677.62, 1,538,349.98 and 631,328.75
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Solution
The fourth proportional to 1,114,677.62, 1,538,349.98 and 631,328.75 is: 871,287.40
Step by Step Solution
- Step 1: Write the proportion equation
1,114,677.62 : 1,538,349.98 = 631,328.75 : x - Step 2: Convert to fraction form
1,114,677.62/1,538,349.98 = 631,328.75/x - Step 3: Cross multiply
1,114,677.62x = 1,538,349.98 × 631,328.75 - Step 4: Simplify right side
1,114,677.62x = 971,204,569,935.93 - Step 5: Solve for x
x = 971,204,569,935.93/1,114,677.62 - Step 6: Final answer
x = 871,287.40
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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.