Finding the Fourth Proportional to 478,622.70, 717,934.05 and 301,475.70
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Solution
The fourth proportional to 478,622.70, 717,934.05 and 301,475.70 is: 452,213.55
Step by Step Solution
- Step 1: Write the proportion equation
478,622.70 : 717,934.05 = 301,475.70 : x - Step 2: Convert to fraction form
478,622.70/717,934.05 = 301,475.70/x - Step 3: Cross multiply
478,622.70x = 717,934.05 × 301,475.70 - Step 4: Simplify right side
478,622.70x = 216,439,670,277.59 - Step 5: Solve for x
x = 216,439,670,277.59/478,622.70 - Step 6: Final answer
x = 452,213.55
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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.