Finding the Fourth Proportional to 639,522.74, 882,544.20 and 353,045.18
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Solution
The fourth proportional to 639,522.74, 882,544.20 and 353,045.18 is: 487,203.90
Step by Step Solution
- Step 1: Write the proportion equation
639,522.74 : 882,544.20 = 353,045.18 : x - Step 2: Convert to fraction form
639,522.74/882,544.20 = 353,045.18/x - Step 3: Cross multiply
639,522.74x = 882,544.20 × 353,045.18 - Step 4: Simplify right side
639,522.74x = 311,577,975,946.96 - Step 5: Solve for x
x = 311,577,975,946.96/639,522.74 - Step 6: Final answer
x = 487,203.90
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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.