Finding the Fourth Proportional to 1,124,384.88, 1,683,874.80 and 643,153.80
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Solution
The fourth proportional to 1,124,384.88, 1,683,874.80 and 643,153.80 is: 963,184.84
Step by Step Solution
- Step 1: Write the proportion equation
1,124,384.88 : 1,683,874.80 = 643,153.80 : x - Step 2: Convert to fraction form
1,124,384.88/1,683,874.80 = 643,153.80/x - Step 3: Cross multiply
1,124,384.88x = 1,683,874.80 × 643,153.80 - Step 4: Simplify right side
1,124,384.88x = 1,082,990,476,344.24 - Step 5: Solve for x
x = 1,082,990,476,344.24/1,124,384.88 - Step 6: Final answer
x = 963,184.84
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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.