Finding the Fourth Proportional to 1,114,476.97, 1,538,140.70 and 624,479.62
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Solution
The fourth proportional to 1,114,476.97, 1,538,140.70 and 624,479.62 is: 861,872.92
Step by Step Solution
- Step 1: Write the proportion equation
1,114,476.97 : 1,538,140.70 = 624,479.62 : x - Step 2: Convert to fraction form
1,114,476.97/1,538,140.70 = 624,479.62/x - Step 3: Cross multiply
1,114,476.97x = 1,538,140.70 × 624,479.62 - Step 4: Simplify right side
1,114,476.97x = 960,537,519,842.53 - Step 5: Solve for x
x = 960,537,519,842.53/1,114,476.97 - Step 6: Final answer
x = 861,872.92
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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.