Finding the Fourth Proportional to 721,958.98, 996,315.18 and 395,266.54
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Solution
The fourth proportional to 721,958.98, 996,315.18 and 395,266.54 is: 545,474.28
Step by Step Solution
- Step 1: Write the proportion equation
721,958.98 : 996,315.18 = 395,266.54 : x - Step 2: Convert to fraction form
721,958.98/996,315.18 = 395,266.54/x - Step 3: Cross multiply
721,958.98x = 996,315.18 × 395,266.54 - Step 4: Simplify right side
721,958.98x = 393,810,053,948.08 - Step 5: Solve for x
x = 393,810,053,948.08/721,958.98 - Step 6: Final answer
x = 545,474.28
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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.