Finding the Fourth Proportional to 418,703.76, 577,586.88 and 291,157.92
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Solution
The fourth proportional to 418,703.76, 577,586.88 and 291,157.92 is: 401,641.95
Step by Step Solution
- Step 1: Write the proportion equation
418,703.76 : 577,586.88 = 291,157.92 : x - Step 2: Convert to fraction form
418,703.76/577,586.88 = 291,157.92/x - Step 3: Cross multiply
418,703.76x = 577,586.88 × 291,157.92 - Step 4: Simplify right side
418,703.76x = 168,168,994,600.09 - Step 5: Solve for x
x = 168,168,994,600.09/418,703.76 - Step 6: Final answer
x = 401,641.95
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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.