Finding the Fourth Proportional to 660,641.44, 990,612.24 and 261,266.08
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Solution
The fourth proportional to 660,641.44, 990,612.24 and 261,266.08 is: 391,760.74
Step by Step Solution
- Step 1: Write the proportion equation
660,641.44 : 990,612.24 = 261,266.08 : x - Step 2: Convert to fraction form
660,641.44/990,612.24 = 261,266.08/x - Step 3: Cross multiply
660,641.44x = 990,612.24 × 261,266.08 - Step 4: Simplify right side
660,641.44x = 258,813,376,744.82 - Step 5: Solve for x
x = 258,813,376,744.82/660,641.44 - Step 6: Final answer
x = 391,760.74
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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.