Finding the Fourth Proportional to 506,930.20, 699,854.94 and 378,576.40
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Solution
The fourth proportional to 506,930.20, 699,854.94 and 378,576.40 is: 522,652.95
Step by Step Solution
- Step 1: Write the proportion equation
506,930.20 : 699,854.94 = 378,576.40 : x - Step 2: Convert to fraction form
506,930.20/699,854.94 = 378,576.40/x - Step 3: Cross multiply
506,930.20x = 699,854.94 × 378,576.40 - Step 4: Simplify right side
506,930.20x = 264,948,563,707.42 - Step 5: Solve for x
x = 264,948,563,707.42/506,930.20 - Step 6: Final answer
x = 522,652.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.