Finding the Fourth Proportional to 815,987.44, 1,224,188.76 and 479,312.80
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Solution
The fourth proportional to 815,987.44, 1,224,188.76 and 479,312.80 is: 719,091.14
Step by Step Solution
- Step 1: Write the proportion equation
815,987.44 : 1,224,188.76 = 479,312.80 : x - Step 2: Convert to fraction form
815,987.44/1,224,188.76 = 479,312.80/x - Step 3: Cross multiply
815,987.44x = 1,224,188.76 × 479,312.80 - Step 4: Simplify right side
815,987.44x = 586,769,342,284.13 - Step 5: Solve for x
x = 586,769,342,284.13/815,987.44 - Step 6: Final answer
x = 719,091.14
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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.