Finding the Fourth Proportional to 566,395.44, 781,619.60 and 311,741.12
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Solution
The fourth proportional to 566,395.44, 781,619.60 and 311,741.12 is: 430,199.38
Step by Step Solution
- Step 1: Write the proportion equation
566,395.44 : 781,619.60 = 311,741.12 : x - Step 2: Convert to fraction form
566,395.44/781,619.60 = 311,741.12/x - Step 3: Cross multiply
566,395.44x = 781,619.60 × 311,741.12 - Step 4: Simplify right side
566,395.44x = 243,662,969,517.95 - Step 5: Solve for x
x = 243,662,969,517.95/566,395.44 - Step 6: Final answer
x = 430,199.38
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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.