Finding the Fourth Proportional to 520,965.64, 718,243.41 and 375,649.84
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Solution
The fourth proportional to 520,965.64, 718,243.41 and 375,649.84 is: 517,899.84
Step by Step Solution
- Step 1: Write the proportion equation
520,965.64 : 718,243.41 = 375,649.84 : x - Step 2: Convert to fraction form
520,965.64/718,243.41 = 375,649.84/x - Step 3: Cross multiply
520,965.64x = 718,243.41 × 375,649.84 - Step 4: Simplify right side
520,965.64x = 269,808,022,047.55 - Step 5: Solve for x
x = 269,808,022,047.55/520,965.64 - Step 6: Final answer
x = 517,899.84
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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.