Finding the Fourth Proportional to 478,838.10, 716,482.96 and 383,779.96
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Solution
The fourth proportional to 478,838.10, 716,482.96 and 383,779.96 is: 574,247.96
Step by Step Solution
- Step 1: Write the proportion equation
478,838.10 : 716,482.96 = 383,779.96 : x - Step 2: Convert to fraction form
478,838.10/716,482.96 = 383,779.96/x - Step 3: Cross multiply
478,838.10x = 716,482.96 × 383,779.96 - Step 4: Simplify right side
478,838.10x = 274,971,801,729.48 - Step 5: Solve for x
x = 274,971,801,729.48/478,838.10 - Step 6: Final answer
x = 574,247.96
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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.