Finding the Fourth Proportional to 478,839.44, 716,484.96 and 383,781.32
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Solution
The fourth proportional to 478,839.44, 716,484.96 and 383,781.32 is: 574,249.99
Step by Step Solution
- Step 1: Write the proportion equation
478,839.44 : 716,484.96 = 383,781.32 : x - Step 2: Convert to fraction form
478,839.44/716,484.96 = 383,781.32/x - Step 3: Cross multiply
478,839.44x = 716,484.96 × 383,781.32 - Step 4: Simplify right side
478,839.44x = 274,973,543,708.95 - Step 5: Solve for x
x = 274,973,543,708.95/478,839.44 - Step 6: Final answer
x = 574,249.99
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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.