Finding the Fourth Proportional to 1,114,439.99, 1,538,089.78 and 624,442.66
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Solution
The fourth proportional to 1,114,439.99, 1,538,089.78 and 624,442.66 is: 861,821.98
Step by Step Solution
- Step 1: Write the proportion equation
1,114,439.99 : 1,538,089.78 = 624,442.66 : x - Step 2: Convert to fraction form
1,114,439.99/1,538,089.78 = 624,442.66/x - Step 3: Cross multiply
1,114,439.99x = 1,538,089.78 × 624,442.66 - Step 4: Simplify right side
1,114,439.99x = 960,448,879,675.79 - Step 5: Solve for x
x = 960,448,879,675.79/1,114,439.99 - Step 6: Final answer
x = 861,821.98
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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.