Finding the Fourth Proportional to 690,770.26, 1,031,088.97 and 640,114.03
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Solution
The fourth proportional to 690,770.26, 1,031,088.97 and 640,114.03 is: 955,476.16
Step by Step Solution
- Step 1: Write the proportion equation
690,770.26 : 1,031,088.97 = 640,114.03 : x - Step 2: Convert to fraction form
690,770.26/1,031,088.97 = 640,114.03/x - Step 3: Cross multiply
690,770.26x = 1,031,088.97 × 640,114.03 - Step 4: Simplify right side
690,770.26x = 660,014,515,875.25 - Step 5: Solve for x
x = 660,014,515,875.25/690,770.26 - Step 6: Final answer
x = 955,476.16
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.