Finding the Fourth Proportional to 939,632.96, 1,296,694.30 and 509,913.08
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Solution
The fourth proportional to 939,632.96, 1,296,694.30 and 509,913.08 is: 703,680.49
Step by Step Solution
- Step 1: Write the proportion equation
939,632.96 : 1,296,694.30 = 509,913.08 : x - Step 2: Convert to fraction form
939,632.96/1,296,694.30 = 509,913.08/x - Step 3: Cross multiply
939,632.96x = 1,296,694.30 × 509,913.08 - Step 4: Simplify right side
939,632.96x = 661,201,384,331.44 - Step 5: Solve for x
x = 661,201,384,331.44/939,632.96 - Step 6: Final answer
x = 703,680.49
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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.