Finding the Fourth Proportional to 468,344.09, 645,876.18 and 310,901.56
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Solution
The fourth proportional to 468,344.09, 645,876.18 and 310,901.56 is: 428,752.95
Step by Step Solution
- Step 1: Write the proportion equation
468,344.09 : 645,876.18 = 310,901.56 : x - Step 2: Convert to fraction form
468,344.09/645,876.18 = 310,901.56/x - Step 3: Cross multiply
468,344.09x = 645,876.18 × 310,901.56 - Step 4: Simplify right side
468,344.09x = 200,803,910,314.15 - Step 5: Solve for x
x = 200,803,910,314.15/468,344.09 - Step 6: Final answer
x = 428,752.95
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1.5x scale
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.