Finding the Fourth Proportional to 857,265.53, 1,285,968.42 and 430,581.96
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Solution
The fourth proportional to 857,265.53, 1,285,968.42 and 430,581.96 is: 645,908.17
Step by Step Solution
- Step 1: Write the proportion equation
857,265.53 : 1,285,968.42 = 430,581.96 : x - Step 2: Convert to fraction form
857,265.53/1,285,968.42 = 430,581.96/x - Step 3: Cross multiply
857,265.53x = 1,285,968.42 × 430,581.96 - Step 4: Simplify right side
857,265.53x = 553,714,802,781.70 - Step 5: Solve for x
x = 553,714,802,781.70/857,265.53 - Step 6: Final answer
x = 645,908.17
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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.