Finding the Fourth Proportional to 627,122.68, 865,430.94 and 340,640.44
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Solution
The fourth proportional to 627,122.68, 865,430.94 and 340,640.44 is: 470,084.70
Step by Step Solution
- Step 1: Write the proportion equation
627,122.68 : 865,430.94 = 340,640.44 : x - Step 2: Convert to fraction form
627,122.68/865,430.94 = 340,640.44/x - Step 3: Cross multiply
627,122.68x = 865,430.94 × 340,640.44 - Step 4: Simplify right side
627,122.68x = 294,800,776,191.21 - Step 5: Solve for x
x = 294,800,776,191.21/627,122.68 - Step 6: Final answer
x = 470,084.70
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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.