Finding the Fourth Proportional to 731,434.12, 1,008,972.62 and 425,476.08
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Solution
The fourth proportional to 731,434.12, 1,008,972.62 and 425,476.08 is: 586,920.55
Step by Step Solution
- Step 1: Write the proportion equation
731,434.12 : 1,008,972.62 = 425,476.08 : x - Step 2: Convert to fraction form
731,434.12/1,008,972.62 = 425,476.08/x - Step 3: Cross multiply
731,434.12x = 1,008,972.62 × 425,476.08 - Step 4: Simplify right side
731,434.12x = 429,293,715,184.93 - Step 5: Solve for x
x = 429,293,715,184.93/731,434.12 - Step 6: Final answer
x = 586,920.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.