Finding the Fourth Proportional to 448,064.68, 617,478.90 and 320,519.08
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Solution
The fourth proportional to 448,064.68, 617,478.90 and 320,519.08 is: 441,708.03
Step by Step Solution
- Step 1: Write the proportion equation
448,064.68 : 617,478.90 = 320,519.08 : x - Step 2: Convert to fraction form
448,064.68/617,478.90 = 320,519.08/x - Step 3: Cross multiply
448,064.68x = 617,478.90 × 320,519.08 - Step 4: Simplify right side
448,064.68x = 197,913,768,947.41 - Step 5: Solve for x
x = 197,913,768,947.41/448,064.68 - Step 6: Final answer
x = 441,708.03
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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.