Finding the Fourth Proportional to 629,641.14, 868,899.30 and 343,161.18
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Solution
The fourth proportional to 629,641.14, 868,899.30 and 343,161.18 is: 473,559.45
Step by Step Solution
- Step 1: Write the proportion equation
629,641.14 : 868,899.30 = 343,161.18 : x - Step 2: Convert to fraction form
629,641.14/868,899.30 = 343,161.18/x - Step 3: Cross multiply
629,641.14x = 868,899.30 × 343,161.18 - Step 4: Simplify right side
629,641.14x = 298,172,509,089.17 - Step 5: Solve for x
x = 298,172,509,089.17/629,641.14 - Step 6: Final answer
x = 473,559.45
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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.