Finding the Fourth Proportional to 831,083.82, 1,246,182.66 and 431,322.09
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Solution
The fourth proportional to 831,083.82, 1,246,182.66 and 431,322.09 is: 646,753.19
Step by Step Solution
- Step 1: Write the proportion equation
831,083.82 : 1,246,182.66 = 431,322.09 : x - Step 2: Convert to fraction form
831,083.82/1,246,182.66 = 431,322.09/x - Step 3: Cross multiply
831,083.82x = 1,246,182.66 × 431,322.09 - Step 4: Simplify right side
831,083.82x = 537,506,109,432.96 - Step 5: Solve for x
x = 537,506,109,432.96/831,083.82 - Step 6: Final answer
x = 646,753.19
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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.