Finding the Fourth Proportional to 911,473.86, 1,367,502.84 and 638,204.70
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Solution
The fourth proportional to 911,473.86, 1,367,502.84 and 638,204.70 is: 957,511.54
Step by Step Solution
- Step 1: Write the proportion equation
911,473.86 : 1,367,502.84 = 638,204.70 : x - Step 2: Convert to fraction form
911,473.86/1,367,502.84 = 638,204.70/x - Step 3: Cross multiply
911,473.86x = 1,367,502.84 × 638,204.70 - Step 4: Simplify right side
911,473.86x = 872,746,739,751.35 - Step 5: Solve for x
x = 872,746,739,751.35/911,473.86 - Step 6: Final answer
x = 957,511.54
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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.