Finding the Fourth Proportional to 636,816.57, 880,067.73 and 521,913.99
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Solution
The fourth proportional to 636,816.57, 880,067.73 and 521,913.99 is: 721,274.67
Step by Step Solution
- Step 1: Write the proportion equation
636,816.57 : 880,067.73 = 521,913.99 : x - Step 2: Convert to fraction form
636,816.57/880,067.73 = 521,913.99/x - Step 3: Cross multiply
636,816.57x = 880,067.73 × 521,913.99 - Step 4: Simplify right side
636,816.57x = 459,319,660,434.54 - Step 5: Solve for x
x = 459,319,660,434.54/636,816.57 - Step 6: Final answer
x = 721,274.67
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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.