Finding the Fourth Proportional to 387,915.68, 536,277.84 and 384,367.52
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Solution
The fourth proportional to 387,915.68, 536,277.84 and 384,367.52 is: 531,372.65
Step by Step Solution
- Step 1: Write the proportion equation
387,915.68 : 536,277.84 = 384,367.52 : x - Step 2: Convert to fraction form
387,915.68/536,277.84 = 384,367.52/x - Step 3: Cross multiply
387,915.68x = 536,277.84 × 384,367.52 - Step 4: Simplify right side
387,915.68x = 206,127,783,391.76 - Step 5: Solve for x
x = 206,127,783,391.76/387,915.68 - Step 6: Final answer
x = 531,372.65
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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.