Finding the Fourth Proportional to 629,714.36, 869,006.34 and 343,228.68
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Solution
The fourth proportional to 629,714.36, 869,006.34 and 343,228.68 is: 473,655.86
Step by Step Solution
- Step 1: Write the proportion equation
629,714.36 : 869,006.34 = 343,228.68 : x - Step 2: Convert to fraction form
629,714.36/869,006.34 = 343,228.68/x - Step 3: Cross multiply
629,714.36x = 869,006.34 × 343,228.68 - Step 4: Simplify right side
629,714.36x = 298,267,898,989.83 - Step 5: Solve for x
x = 298,267,898,989.83/629,714.36 - Step 6: Final answer
x = 473,655.86
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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.