Finding the Fourth Proportional to 562,731.21, 776,571.35 and 308,106.09
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Solution
The fourth proportional to 562,731.21, 776,571.35 and 308,106.09 is: 425,187.65
Step by Step Solution
- Step 1: Write the proportion equation
562,731.21 : 776,571.35 = 308,106.09 : x - Step 2: Convert to fraction form
562,731.21/776,571.35 = 308,106.09/x - Step 3: Cross multiply
562,731.21x = 776,571.35 × 308,106.09 - Step 4: Simplify right side
562,731.21x = 239,266,360,713.99 - Step 5: Solve for x
x = 239,266,360,713.99/562,731.21 - Step 6: Final answer
x = 425,187.65
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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.