Finding the Fourth Proportional to 648,176.70, 973,139.85 and 515,207.10
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Solution
The fourth proportional to 648,176.70, 973,139.85 and 515,207.10 is: 773,505.99
Step by Step Solution
- Step 1: Write the proportion equation
648,176.70 : 973,139.85 = 515,207.10 : x - Step 2: Convert to fraction form
648,176.70/973,139.85 = 515,207.10/x - Step 3: Cross multiply
648,176.70x = 973,139.85 × 515,207.10 - Step 4: Simplify right side
648,176.70x = 501,368,560,012.94 - Step 5: Solve for x
x = 501,368,560,012.94/648,176.70 - Step 6: Final answer
x = 773,505.99
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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.