Finding the Fourth Proportional to 762,913.69, 1,052,823.62 and 423,381.94
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Solution
The fourth proportional to 762,913.69, 1,052,823.62 and 423,381.94 is: 584,268.59
Step by Step Solution
- Step 1: Write the proportion equation
762,913.69 : 1,052,823.62 = 423,381.94 : x - Step 2: Convert to fraction form
762,913.69/1,052,823.62 = 423,381.94/x - Step 3: Cross multiply
762,913.69x = 1,052,823.62 × 423,381.94 - Step 4: Simplify right side
762,913.69x = 445,746,505,139.82 - Step 5: Solve for x
x = 445,746,505,139.82/762,913.69 - Step 6: Final answer
x = 584,268.59
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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.