Finding the Fourth Proportional to 627,122.40, 865,432.26 and 340,644.84
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Solution
The fourth proportional to 627,122.40, 865,432.26 and 340,644.84 is: 470,091.70
Step by Step Solution
- Step 1: Write the proportion equation
627,122.40 : 865,432.26 = 340,644.84 : x - Step 2: Convert to fraction form
627,122.40/865,432.26 = 340,644.84/x - Step 3: Cross multiply
627,122.40x = 865,432.26 × 340,644.84 - Step 4: Simplify right side
627,122.40x = 294,805,033,738.54 - Step 5: Solve for x
x = 294,805,033,738.54/627,122.40 - Step 6: Final answer
x = 470,091.70
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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.