Finding the Fourth Proportional to 497,463.29, 686,415.29 and 279,642.95
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Solution
The fourth proportional to 497,463.29, 686,415.29 and 279,642.95 is: 385,860.02
Step by Step Solution
- Step 1: Write the proportion equation
497,463.29 : 686,415.29 = 279,642.95 : x - Step 2: Convert to fraction form
497,463.29/686,415.29 = 279,642.95/x - Step 3: Cross multiply
497,463.29x = 686,415.29 × 279,642.95 - Step 4: Simplify right side
497,463.29x = 191,951,191,790.41 - Step 5: Solve for x
x = 191,951,191,790.41/497,463.29 - Step 6: Final answer
x = 385,860.02
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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.