Finding the Fourth Proportional to 805,990.77, 1,207,989.63 and 406,745.73
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Solution
The fourth proportional to 805,990.77, 1,207,989.63 and 406,745.73 is: 609,615.70
Step by Step Solution
- Step 1: Write the proportion equation
805,990.77 : 1,207,989.63 = 406,745.73 : x - Step 2: Convert to fraction form
805,990.77/1,207,989.63 = 406,745.73/x - Step 3: Cross multiply
805,990.77x = 1,207,989.63 × 406,745.73 - Step 4: Simplify right side
805,990.77x = 491,344,623,886.78 - Step 5: Solve for x
x = 491,344,623,886.78/805,990.77 - Step 6: Final answer
x = 609,615.70
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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.