Finding the Fourth Proportional to 629,621.14, 868,851.87 and 343,135.07
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Solution
The fourth proportional to 629,621.14, 868,851.87 and 343,135.07 is: 473,512.61
Step by Step Solution
- Step 1: Write the proportion equation
629,621.14 : 868,851.87 = 343,135.07 : x - Step 2: Convert to fraction form
629,621.14/868,851.87 = 343,135.07/x - Step 3: Cross multiply
629,621.14x = 868,851.87 × 343,135.07 - Step 4: Simplify right side
629,621.14x = 298,133,547,232.08 - Step 5: Solve for x
x = 298,133,547,232.08/629,621.14 - Step 6: Final answer
x = 473,512.61
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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.