Finding the Fourth Proportional to 939,869.18, 1,296,797.10 and 531,970.97
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Solution
The fourth proportional to 939,869.18, 1,296,797.10 and 531,970.97 is: 733,994.07
Step by Step Solution
- Step 1: Write the proportion equation
939,869.18 : 1,296,797.10 = 531,970.97 : x - Step 2: Convert to fraction form
939,869.18/1,296,797.10 = 531,970.97/x - Step 3: Cross multiply
939,869.18x = 1,296,797.10 × 531,970.97 - Step 4: Simplify right side
939,869.18x = 689,858,404,696.20 - Step 5: Solve for x
x = 689,858,404,696.20/939,869.18 - Step 6: Final answer
x = 733,994.07
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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.