Finding the Fourth Proportional to 818,327.77, 1,129,247.84 and 450,733.36
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Solution
The fourth proportional to 818,327.77, 1,129,247.84 and 450,733.36 is: 621,987.54
Step by Step Solution
- Step 1: Write the proportion equation
818,327.77 : 1,129,247.84 = 450,733.36 : x - Step 2: Convert to fraction form
818,327.77/1,129,247.84 = 450,733.36/x - Step 3: Cross multiply
818,327.77x = 1,129,247.84 × 450,733.36 - Step 4: Simplify right side
818,327.77x = 508,989,673,195.94 - Step 5: Solve for x
x = 508,989,673,195.94/818,327.77 - Step 6: Final answer
x = 621,987.54
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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.