Finding the Fourth Proportional to 786,827.28, 1,180,239.84 and 313,844.76
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Solution
The fourth proportional to 786,827.28, 1,180,239.84 and 313,844.76 is: 470,766.71
Step by Step Solution
- Step 1: Write the proportion equation
786,827.28 : 1,180,239.84 = 313,844.76 : x - Step 2: Convert to fraction form
786,827.28/1,180,239.84 = 313,844.76/x - Step 3: Cross multiply
786,827.28x = 1,180,239.84 × 313,844.76 - Step 4: Simplify right side
786,827.28x = 370,412,089,327.24 - Step 5: Solve for x
x = 370,412,089,327.24/786,827.28 - Step 6: Final answer
x = 470,766.71
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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.