Finding the Fourth Proportional to 823,661.79, 1,236,291.62 and 397,497.53
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Solution
The fourth proportional to 823,661.79, 1,236,291.62 and 397,497.53 is: 596,631.86
Step by Step Solution
- Step 1: Write the proportion equation
823,661.79 : 1,236,291.62 = 397,497.53 : x - Step 2: Convert to fraction form
823,661.79/1,236,291.62 = 397,497.53/x - Step 3: Cross multiply
823,661.79x = 1,236,291.62 × 397,497.53 - Step 4: Simplify right side
823,661.79x = 491,422,865,309.70 - Step 5: Solve for x
x = 491,422,865,309.70/823,661.79 - Step 6: Final answer
x = 596,631.86
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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.