Finding the Fourth Proportional to 781,583.13, 1,172,374.65 and 220,617.63
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Solution
The fourth proportional to 781,583.13, 1,172,374.65 and 220,617.63 is: 330,926.43
Step by Step Solution
- Step 1: Write the proportion equation
781,583.13 : 1,172,374.65 = 220,617.63 : x - Step 2: Convert to fraction form
781,583.13/1,172,374.65 = 220,617.63/x - Step 3: Cross multiply
781,583.13x = 1,172,374.65 × 220,617.63 - Step 4: Simplify right side
781,583.13x = 258,646,516,755.08 - Step 5: Solve for x
x = 258,646,516,755.08/781,583.13 - Step 6: Final answer
x = 330,926.43
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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.