Finding the Fourth Proportional to 627,417.07, 865,840.31 and 340,938.70
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Solution
The fourth proportional to 627,417.07, 865,840.31 and 340,938.70 is: 470,497.99
Step by Step Solution
- Step 1: Write the proportion equation
627,417.07 : 865,840.31 = 340,938.70 : x - Step 2: Convert to fraction form
627,417.07/865,840.31 = 340,938.70/x - Step 3: Cross multiply
627,417.07x = 865,840.31 × 340,938.70 - Step 4: Simplify right side
627,417.07x = 295,198,469,699.00 - Step 5: Solve for x
x = 295,198,469,699.00/627,417.07 - Step 6: Final answer
x = 470,497.99
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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.