Finding the Fourth Proportional to 790,453.76, 1,090,723.68 and 450,901.76
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Solution
The fourth proportional to 790,453.76, 1,090,723.68 and 450,901.76 is: 622,185.95
Step by Step Solution
- Step 1: Write the proportion equation
790,453.76 : 1,090,723.68 = 450,901.76 : x - Step 2: Convert to fraction form
790,453.76/1,090,723.68 = 450,901.76/x - Step 3: Cross multiply
790,453.76x = 1,090,723.68 × 450,901.76 - Step 4: Simplify right side
790,453.76x = 491,809,226,985.68 - Step 5: Solve for x
x = 491,809,226,985.68/790,453.76 - Step 6: Final answer
x = 622,185.95
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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.