Finding the Fourth Proportional to 479,787.68, 720,120.48 and 243,293.60
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Solution
The fourth proportional to 479,787.68, 720,120.48 and 243,293.60 is: 365,162.99
Step by Step Solution
- Step 1: Write the proportion equation
479,787.68 : 720,120.48 = 243,293.60 : x - Step 2: Convert to fraction form
479,787.68/720,120.48 = 243,293.60/x - Step 3: Cross multiply
479,787.68x = 720,120.48 × 243,293.60 - Step 4: Simplify right side
479,787.68x = 175,200,704,012.93 - Step 5: Solve for x
x = 175,200,704,012.93/479,787.68 - Step 6: Final answer
x = 365,162.99
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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.