Finding the Fourth Proportional to 885,587.05, 1,328,282.15 and 316,945.18
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Solution
The fourth proportional to 885,587.05, 1,328,282.15 and 316,945.18 is: 475,382.54
Step by Step Solution
- Step 1: Write the proportion equation
885,587.05 : 1,328,282.15 = 316,945.18 : x - Step 2: Convert to fraction form
885,587.05/1,328,282.15 = 316,945.18/x - Step 3: Cross multiply
885,587.05x = 1,328,282.15 × 316,945.18 - Step 4: Simplify right side
885,587.05x = 420,992,618,481.13 - Step 5: Solve for x
x = 420,992,618,481.13/885,587.05 - Step 6: Final answer
x = 475,382.54
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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.