Finding the Fourth Proportional to 639,597.42, 882,645.75 and 353,118.06
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Solution
The fourth proportional to 639,597.42, 882,645.75 and 353,118.06 is: 487,303.65
Step by Step Solution
- Step 1: Write the proportion equation
639,597.42 : 882,645.75 = 353,118.06 : x - Step 2: Convert to fraction form
639,597.42/882,645.75 = 353,118.06/x - Step 3: Cross multiply
639,597.42x = 882,645.75 × 353,118.06 - Step 4: Simplify right side
639,597.42x = 311,678,154,907.25 - Step 5: Solve for x
x = 311,678,154,907.25/639,597.42 - Step 6: Final answer
x = 487,303.65
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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.