Finding the Fourth Proportional to 840,587.12, 1,260,787.23 and 300,821.62
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Solution
The fourth proportional to 840,587.12, 1,260,787.23 and 300,821.62 is: 451,198.99
Step by Step Solution
- Step 1: Write the proportion equation
840,587.12 : 1,260,787.23 = 300,821.62 : x - Step 2: Convert to fraction form
840,587.12/1,260,787.23 = 300,821.62/x - Step 3: Cross multiply
840,587.12x = 1,260,787.23 × 300,821.62 - Step 4: Simplify right side
840,587.12x = 379,272,057,003.91 - Step 5: Solve for x
x = 379,272,057,003.91/840,587.12 - Step 6: Final answer
x = 451,198.99
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1.5x scale
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.