Finding the Fourth Proportional to 922,519.74, 1,381,287.45 and 478,354.62
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Solution
The fourth proportional to 922,519.74, 1,381,287.45 and 478,354.62 is: 716,239.67
Step by Step Solution
- Step 1: Write the proportion equation
922,519.74 : 1,381,287.45 = 478,354.62 : x - Step 2: Convert to fraction form
922,519.74/1,381,287.45 = 478,354.62/x - Step 3: Cross multiply
922,519.74x = 1,381,287.45 × 478,354.62 - Step 4: Simplify right side
922,519.74x = 660,745,233,255.52 - Step 5: Solve for x
x = 660,745,233,255.52/922,519.74 - Step 6: Final answer
x = 716,239.67
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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.