Finding the Fourth Proportional to 939,305.78, 1,296,242.44 and 509,585.79
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Solution
The fourth proportional to 939,305.78, 1,296,242.44 and 509,585.79 is: 703,228.64
Step by Step Solution
- Step 1: Write the proportion equation
939,305.78 : 1,296,242.44 = 509,585.79 : x - Step 2: Convert to fraction form
939,305.78/1,296,242.44 = 509,585.79/x - Step 3: Cross multiply
939,305.78x = 1,296,242.44 × 509,585.79 - Step 4: Simplify right side
939,305.78x = 660,546,727,818.93 - Step 5: Solve for x
x = 660,546,727,818.93/939,305.78 - Step 6: Final answer
x = 703,228.64
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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.