Finding the Fourth Proportional to 691,153.18, 953,675.84 and 385,162.52
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Solution
The fourth proportional to 691,153.18, 953,675.84 and 385,162.52 is: 531,459.88
Step by Step Solution
- Step 1: Write the proportion equation
691,153.18 : 953,675.84 = 385,162.52 : x - Step 2: Convert to fraction form
691,153.18/953,675.84 = 385,162.52/x - Step 3: Cross multiply
691,153.18x = 953,675.84 × 385,162.52 - Step 4: Simplify right side
691,153.18x = 367,320,185,992.04 - Step 5: Solve for x
x = 367,320,185,992.04/691,153.18 - Step 6: Final answer
x = 531,459.88
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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.