Finding the Fourth Proportional to 778,879.30, 1,168,318.95 and 441,789.70
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Solution
The fourth proportional to 778,879.30, 1,168,318.95 and 441,789.70 is: 662,684.55
Step by Step Solution
- Step 1: Write the proportion equation
778,879.30 : 1,168,318.95 = 441,789.70 : x - Step 2: Convert to fraction form
778,879.30/1,168,318.95 = 441,789.70/x - Step 3: Cross multiply
778,879.30x = 1,168,318.95 × 441,789.70 - Step 4: Simplify right side
778,879.30x = 516,151,278,424.82 - Step 5: Solve for x
x = 516,151,278,424.82/778,879.30 - Step 6: Final answer
x = 662,684.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.