Finding the Fourth Proportional to 557,374.42, 769,194.86 and 315,651.79
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Solution
The fourth proportional to 557,374.42, 769,194.86 and 315,651.79 is: 435,609.75
Step by Step Solution
- Step 1: Write the proportion equation
557,374.42 : 769,194.86 = 315,651.79 : x - Step 2: Convert to fraction form
557,374.42/769,194.86 = 315,651.79/x - Step 3: Cross multiply
557,374.42x = 769,194.86 × 315,651.79 - Step 4: Simplify right side
557,374.42x = 242,797,734,417.80 - Step 5: Solve for x
x = 242,797,734,417.80/557,374.42 - Step 6: Final answer
x = 435,609.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.