Finding the Fourth Proportional to 667,636.54, 921,337.18 and 361,720.53
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Solution
The fourth proportional to 667,636.54, 921,337.18 and 361,720.53 is: 499,173.66
Step by Step Solution
- Step 1: Write the proportion equation
667,636.54 : 921,337.18 = 361,720.53 : x - Step 2: Convert to fraction form
667,636.54/921,337.18 = 361,720.53/x - Step 3: Cross multiply
667,636.54x = 921,337.18 × 361,720.53 - Step 4: Simplify right side
667,636.54x = 333,266,572,154.00 - Step 5: Solve for x
x = 333,266,572,154.00/667,636.54 - Step 6: Final answer
x = 499,173.66
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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.