Finding the Fourth Proportional to 868,129.22, 1,302,261.15 and 260,870.12
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Solution
The fourth proportional to 868,129.22, 1,302,261.15 and 260,870.12 is: 391,325.41
Step by Step Solution
- Step 1: Write the proportion equation
868,129.22 : 1,302,261.15 = 260,870.12 : x - Step 2: Convert to fraction form
868,129.22/1,302,261.15 = 260,870.12/x - Step 3: Cross multiply
868,129.22x = 1,302,261.15 × 260,870.12 - Step 4: Simplify right side
868,129.22x = 339,721,022,471.84 - Step 5: Solve for x
x = 339,721,022,471.84/868,129.22 - Step 6: Final answer
x = 391,325.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.