Finding the Fourth Proportional to 400,621.74, 552,888.70 and 228,543.49
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Solution
The fourth proportional to 400,621.74, 552,888.70 and 228,543.49 is: 315,407.53
Step by Step Solution
- Step 1: Write the proportion equation
400,621.74 : 552,888.70 = 228,543.49 : x - Step 2: Convert to fraction form
400,621.74/552,888.70 = 228,543.49/x - Step 3: Cross multiply
400,621.74x = 552,888.70 × 228,543.49 - Step 4: Simplify right side
400,621.74x = 126,359,113,079.56 - Step 5: Solve for x
x = 126,359,113,079.56/400,621.74 - Step 6: Final answer
x = 315,407.53
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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.