Finding the Fourth Proportional to 493,076.70, 739,615.05 and 315,929.70
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Solution
The fourth proportional to 493,076.70, 739,615.05 and 315,929.70 is: 473,894.55
Step by Step Solution
- Step 1: Write the proportion equation
493,076.70 : 739,615.05 = 315,929.70 : x - Step 2: Convert to fraction form
493,076.70/739,615.05 = 315,929.70/x - Step 3: Cross multiply
493,076.70x = 739,615.05 × 315,929.70 - Step 4: Simplify right side
493,076.70x = 233,666,360,861.99 - Step 5: Solve for x
x = 233,666,360,861.99/493,076.70 - Step 6: Final answer
x = 473,894.55
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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.