Finding the Fourth Proportional to 629,574.17, 868,787.07 and 343,088.09
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Solution
The fourth proportional to 629,574.17, 868,787.07 and 343,088.09 is: 473,447.79
Step by Step Solution
- Step 1: Write the proportion equation
629,574.17 : 868,787.07 = 343,088.09 : x - Step 2: Convert to fraction form
629,574.17/868,787.07 = 343,088.09/x - Step 3: Cross multiply
629,574.17x = 868,787.07 × 343,088.09 - Step 4: Simplify right side
629,574.17x = 298,070,496,463.00 - Step 5: Solve for x
x = 298,070,496,463.00/629,574.17 - Step 6: Final answer
x = 473,447.79
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1.5x scale
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.