Finding the Fourth Proportional to 752,364.74, 1,038,260.49 and 412,838.66
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Solution
The fourth proportional to 752,364.74, 1,038,260.49 and 412,838.66 is: 569,715.79
Step by Step Solution
- Step 1: Write the proportion equation
752,364.74 : 1,038,260.49 = 412,838.66 : x - Step 2: Convert to fraction form
752,364.74/1,038,260.49 = 412,838.66/x - Step 3: Cross multiply
752,364.74x = 1,038,260.49 × 412,838.66 - Step 4: Simplify right side
752,364.74x = 428,634,069,422.54 - Step 5: Solve for x
x = 428,634,069,422.54/752,364.74 - Step 6: Final answer
x = 569,715.79
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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.