Finding the Fourth Proportional to 639,606.86, 882,655.01 and 353,124.84
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Solution
The fourth proportional to 639,606.86, 882,655.01 and 353,124.84 is: 487,310.92
Step by Step Solution
- Step 1: Write the proportion equation
639,606.86 : 882,655.01 = 353,124.84 : x - Step 2: Convert to fraction form
639,606.86/882,655.01 = 353,124.84/x - Step 3: Cross multiply
639,606.86x = 882,655.01 × 353,124.84 - Step 4: Simplify right side
639,606.86x = 311,687,407,415.82 - Step 5: Solve for x
x = 311,687,407,415.82/639,606.86 - Step 6: Final answer
x = 487,310.92
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1.5x scale
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.