Finding the Fourth Proportional to 752,515.92, 1,038,437.28 and 412,989.84
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Solution
The fourth proportional to 752,515.92, 1,038,437.28 and 412,989.84 is: 569,906.94
Step by Step Solution
- Step 1: Write the proportion equation
752,515.92 : 1,038,437.28 = 412,989.84 : x - Step 2: Convert to fraction form
752,515.92/1,038,437.28 = 412,989.84/x - Step 3: Cross multiply
752,515.92x = 1,038,437.28 × 412,989.84 - Step 4: Simplify right side
752,515.92x = 428,864,046,117.24 - Step 5: Solve for x
x = 428,864,046,117.24/752,515.92 - Step 6: Final answer
x = 569,906.94
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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.