Finding the Fourth Proportional to 724,341.64, 1,087,578.84 and 405,118.96
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Solution
The fourth proportional to 724,341.64, 1,087,578.84 and 405,118.96 is: 608,274.86
Step by Step Solution
- Step 1: Write the proportion equation
724,341.64 : 1,087,578.84 = 405,118.96 : x - Step 2: Convert to fraction form
724,341.64/1,087,578.84 = 405,118.96/x - Step 3: Cross multiply
724,341.64x = 1,087,578.84 × 405,118.96 - Step 4: Simplify right side
724,341.64x = 440,598,808,578.81 - Step 5: Solve for x
x = 440,598,808,578.81/724,341.64 - Step 6: Final answer
x = 608,274.86
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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.