Finding the Fourth Proportional to 399,622.05, 551,636.19 and 246,722.06
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Solution
The fourth proportional to 399,622.05, 551,636.19 and 246,722.06 is: 340,573.84
Step by Step Solution
- Step 1: Write the proportion equation
399,622.05 : 551,636.19 = 246,722.06 : x - Step 2: Convert to fraction form
399,622.05/551,636.19 = 246,722.06/x - Step 3: Cross multiply
399,622.05x = 551,636.19 × 246,722.06 - Step 4: Simplify right side
399,622.05x = 136,100,814,409.17 - Step 5: Solve for x
x = 136,100,814,409.17/399,622.05 - Step 6: Final answer
x = 340,573.84
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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.