Finding the Fourth Proportional to 939,367.10, 1,296,314.94 and 509,644.08
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Solution
The fourth proportional to 939,367.10, 1,296,314.94 and 509,644.08 is: 703,302.51
Step by Step Solution
- Step 1: Write the proportion equation
939,367.10 : 1,296,314.94 = 509,644.08 : x - Step 2: Convert to fraction form
939,367.10/1,296,314.94 = 509,644.08/x - Step 3: Cross multiply
939,367.10x = 1,296,314.94 × 509,644.08 - Step 4: Simplify right side
939,367.10x = 660,659,234,986.56 - Step 5: Solve for x
x = 660,659,234,986.56/939,367.10 - Step 6: Final answer
x = 703,302.51
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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.