Finding the Fourth Proportional to 865,843.02, 1,292,424.03 and 763,579.62
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Solution
The fourth proportional to 865,843.02, 1,292,424.03 and 763,579.62 is: 1,139,777.80
Step by Step Solution
- Step 1: Write the proportion equation
865,843.02 : 1,292,424.03 = 763,579.62 : x - Step 2: Convert to fraction form
865,843.02/1,292,424.03 = 763,579.62/x - Step 3: Cross multiply
865,843.02x = 1,292,424.03 × 763,579.62 - Step 4: Simplify right side
865,843.02x = 986,868,649,706.27 - Step 5: Solve for x
x = 986,868,649,706.27/865,843.02 - Step 6: Final answer
x = 1,139,777.80
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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.