Finding the Fourth Proportional to 1,121,838.79, 1,683,283.70 and 552,909.75
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Solution
The fourth proportional to 1,121,838.79, 1,683,283.70 and 552,909.75 is: 829,623.63
Step by Step Solution
- Step 1: Write the proportion equation
1,121,838.79 : 1,683,283.70 = 552,909.75 : x - Step 2: Convert to fraction form
1,121,838.79/1,683,283.70 = 552,909.75/x - Step 3: Cross multiply
1,121,838.79x = 1,683,283.70 × 552,909.75 - Step 4: Simplify right side
1,121,838.79x = 930,703,964,038.53 - Step 5: Solve for x
x = 930,703,964,038.53/1,121,838.79 - Step 6: Final answer
x = 829,623.63
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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.