Finding the Fourth Proportional to 395,432.88, 545,779.80 and 363,551.28
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Solution
The fourth proportional to 395,432.88, 545,779.80 and 363,551.28 is: 501,776.55
Step by Step Solution
- Step 1: Write the proportion equation
395,432.88 : 545,779.80 = 363,551.28 : x - Step 2: Convert to fraction form
395,432.88/545,779.80 = 363,551.28/x - Step 3: Cross multiply
395,432.88x = 545,779.80 × 363,551.28 - Step 4: Simplify right side
395,432.88x = 198,418,944,888.14 - Step 5: Solve for x
x = 198,418,944,888.14/395,432.88 - Step 6: Final answer
x = 501,776.55
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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.