Finding the Fourth Proportional to 628,705.38, 943,058.38 and 207,981.26
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Solution
The fourth proportional to 628,705.38, 943,058.38 and 207,981.26 is: 311,971.99
Step by Step Solution
- Step 1: Write the proportion equation
628,705.38 : 943,058.38 = 207,981.26 : x - Step 2: Convert to fraction form
628,705.38/943,058.38 = 207,981.26/x - Step 3: Cross multiply
628,705.38x = 943,058.38 × 207,981.26 - Step 4: Simplify right side
628,705.38x = 196,138,470,125.96 - Step 5: Solve for x
x = 196,138,470,125.96/628,705.38 - Step 6: Final answer
x = 311,971.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.