Finding the Fourth Proportional to 492,553.17, 679,657.05 and 285,816.06
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Solution
The fourth proportional to 492,553.17, 679,657.05 and 285,816.06 is: 394,387.68
Step by Step Solution
- Step 1: Write the proportion equation
492,553.17 : 679,657.05 = 285,816.06 : x - Step 2: Convert to fraction form
492,553.17/679,657.05 = 285,816.06/x - Step 3: Cross multiply
492,553.17x = 679,657.05 × 285,816.06 - Step 4: Simplify right side
492,553.17x = 194,256,900,182.22 - Step 5: Solve for x
x = 194,256,900,182.22/492,553.17 - Step 6: Final answer
x = 394,387.68
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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.