Finding the Fourth Proportional to 644,428.80, 965,476.80 and 551,116.80
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Solution
The fourth proportional to 644,428.80, 965,476.80 and 551,116.80 is: 825,677.69
Step by Step Solution
- Step 1: Write the proportion equation
644,428.80 : 965,476.80 = 551,116.80 : x - Step 2: Convert to fraction form
644,428.80/965,476.80 = 551,116.80/x - Step 3: Cross multiply
644,428.80x = 965,476.80 × 551,116.80 - Step 4: Simplify right side
644,428.80x = 532,090,484,490.24 - Step 5: Solve for x
x = 532,090,484,490.24/644,428.80 - Step 6: Final answer
x = 825,677.69
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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.