Finding the Fourth Proportional to 478,116.44, 717,169.80 and 123,129.08
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Solution
The fourth proportional to 478,116.44, 717,169.80 and 123,129.08 is: 184,692.37
Step by Step Solution
- Step 1: Write the proportion equation
478,116.44 : 717,169.80 = 123,129.08 : x - Step 2: Convert to fraction form
478,116.44/717,169.80 = 123,129.08/x - Step 3: Cross multiply
478,116.44x = 717,169.80 × 123,129.08 - Step 4: Simplify right side
478,116.44x = 88,304,457,677.78 - Step 5: Solve for x
x = 88,304,457,677.78/478,116.44 - Step 6: Final answer
x = 184,692.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.