Finding the Fourth Proportional to 628,447.19, 942,818.44 and 207,723.07
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Solution
The fourth proportional to 628,447.19, 942,818.44 and 207,723.07 is: 311,633.41
Step by Step Solution
- Step 1: Write the proportion equation
628,447.19 : 942,818.44 = 207,723.07 : x - Step 2: Convert to fraction form
628,447.19/942,818.44 = 207,723.07/x - Step 3: Cross multiply
628,447.19x = 942,818.44 × 207,723.07 - Step 4: Simplify right side
628,447.19x = 195,845,140,809.41 - Step 5: Solve for x
x = 195,845,140,809.41/628,447.19 - Step 6: Final answer
x = 311,633.41
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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.