Finding the Fourth Proportional to 608,184.81, 912,425.58 and 428,620.23
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Solution
The fourth proportional to 608,184.81, 912,425.58 and 428,620.23 is: 643,034.91
Step by Step Solution
- Step 1: Write the proportion equation
608,184.81 : 912,425.58 = 428,620.23 : x - Step 2: Convert to fraction form
608,184.81/912,425.58 = 428,620.23/x - Step 3: Cross multiply
608,184.81x = 912,425.58 × 428,620.23 - Step 4: Simplify right side
608,184.81x = 391,084,061,957.48 - Step 5: Solve for x
x = 391,084,061,957.48/608,184.81 - Step 6: Final answer
x = 643,034.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.