Finding the Fourth Proportional to 916,660.76, 1,264,972.82 and 508,738.68
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Solution
The fourth proportional to 916,660.76, 1,264,972.82 and 508,738.68 is: 702,048.82
Step by Step Solution
- Step 1: Write the proportion equation
916,660.76 : 1,264,972.82 = 508,738.68 : x - Step 2: Convert to fraction form
916,660.76/1,264,972.82 = 508,738.68/x - Step 3: Cross multiply
916,660.76x = 1,264,972.82 × 508,738.68 - Step 4: Simplify right side
916,660.76x = 643,540,600,138.98 - Step 5: Solve for x
x = 643,540,600,138.98/916,660.76 - Step 6: Final answer
x = 702,048.82
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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.