Finding the Fourth Proportional to 641,836.08, 885,925.80 and 415,496.88
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Solution
The fourth proportional to 641,836.08, 885,925.80 and 415,496.88 is: 573,509.99
Step by Step Solution
- Step 1: Write the proportion equation
641,836.08 : 885,925.80 = 415,496.88 : x - Step 2: Convert to fraction form
641,836.08/885,925.80 = 415,496.88/x - Step 3: Cross multiply
641,836.08x = 885,925.80 × 415,496.88 - Step 4: Simplify right side
641,836.08x = 368,099,405,811.50 - Step 5: Solve for x
x = 368,099,405,811.50/641,836.08 - Step 6: Final answer
x = 573,509.99
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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.