Finding the Fourth Proportional to 900,888.49, 1,243,226.24 and 492,990.42
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Solution
The fourth proportional to 900,888.49, 1,243,226.24 and 492,990.42 is: 680,326.85
Step by Step Solution
- Step 1: Write the proportion equation
900,888.49 : 1,243,226.24 = 492,990.42 : x - Step 2: Convert to fraction form
900,888.49/1,243,226.24 = 492,990.42/x - Step 3: Cross multiply
900,888.49x = 1,243,226.24 × 492,990.42 - Step 4: Simplify right side
900,888.49x = 612,898,625,596.38 - Step 5: Solve for x
x = 612,898,625,596.38/900,888.49 - Step 6: Final answer
x = 680,326.85
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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.