Finding the Fourth Proportional to 492,594.12, 679,694.76 and 285,787.62
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Solution
The fourth proportional to 492,594.12, 679,694.76 and 285,787.62 is: 394,337.53
Step by Step Solution
- Step 1: Write the proportion equation
492,594.12 : 679,694.76 = 285,787.62 : x - Step 2: Convert to fraction form
492,594.12/679,694.76 = 285,787.62/x - Step 3: Cross multiply
492,594.12x = 679,694.76 × 285,787.62 - Step 4: Simplify right side
492,594.12x = 194,248,347,786.87 - Step 5: Solve for x
x = 194,248,347,786.87/492,594.12 - Step 6: Final answer
x = 394,337.53
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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.