Finding the Fourth Proportional to 646,173.59, 891,803.12 and 370,638.95
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Solution
The fourth proportional to 646,173.59, 891,803.12 and 370,638.95 is: 511,529.68
Step by Step Solution
- Step 1: Write the proportion equation
646,173.59 : 891,803.12 = 370,638.95 : x - Step 2: Convert to fraction form
646,173.59/891,803.12 = 370,638.95/x - Step 3: Cross multiply
646,173.59x = 891,803.12 × 370,638.95 - Step 4: Simplify right side
646,173.59x = 330,536,965,691.31 - Step 5: Solve for x
x = 330,536,965,691.31/646,173.59 - Step 6: Final answer
x = 511,529.68
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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.