Finding the Fourth Proportional to 823,415.11, 1,136,312.68 and 460,838.95
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Solution
The fourth proportional to 823,415.11, 1,136,312.68 and 460,838.95 is: 635,957.65
Step by Step Solution
- Step 1: Write the proportion equation
823,415.11 : 1,136,312.68 = 460,838.95 : x - Step 2: Convert to fraction form
823,415.11/1,136,312.68 = 460,838.95/x - Step 3: Cross multiply
823,415.11x = 1,136,312.68 × 460,838.95 - Step 4: Simplify right side
823,415.11x = 523,657,142,322.89 - Step 5: Solve for x
x = 523,657,142,322.89/823,415.11 - Step 6: Final answer
x = 635,957.65
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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.