Finding the Fourth Proportional to 457,581.91, 631,249.44 and 287,909.59
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Solution
The fourth proportional to 457,581.91, 631,249.44 and 287,909.59 is: 397,180.84
Step by Step Solution
- Step 1: Write the proportion equation
457,581.91 : 631,249.44 = 287,909.59 : x - Step 2: Convert to fraction form
457,581.91/631,249.44 = 287,909.59/x - Step 3: Cross multiply
457,581.91x = 631,249.44 × 287,909.59 - Step 4: Simplify right side
457,581.91x = 181,742,767,458.13 - Step 5: Solve for x
x = 181,742,767,458.13/457,581.91 - Step 6: Final answer
x = 397,180.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.