Finding the Fourth Proportional to 910,628.29, 1,256,831.54 and 543,128.99
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Solution
The fourth proportional to 910,628.29, 1,256,831.54 and 543,128.99 is: 749,616.12
Step by Step Solution
- Step 1: Write the proportion equation
910,628.29 : 1,256,831.54 = 543,128.99 : x - Step 2: Convert to fraction form
910,628.29/1,256,831.54 = 543,128.99/x - Step 3: Cross multiply
910,628.29x = 1,256,831.54 × 543,128.99 - Step 4: Simplify right side
910,628.29x = 682,621,644,920.35 - Step 5: Solve for x
x = 682,621,644,920.35/910,628.29 - Step 6: Final answer
x = 749,616.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.