Finding the Fourth Proportional to 449,697.09, 620,590.87 and 245,760.63
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Solution
The fourth proportional to 449,697.09, 620,590.87 and 245,760.63 is: 339,154.53
Step by Step Solution
- Step 1: Write the proportion equation
449,697.09 : 620,590.87 = 245,760.63 : x - Step 2: Convert to fraction form
449,697.09/620,590.87 = 245,760.63/x - Step 3: Cross multiply
449,697.09x = 620,590.87 × 245,760.63 - Step 4: Simplify right side
449,697.09x = 152,516,803,271.85 - Step 5: Solve for x
x = 152,516,803,271.85/449,697.09 - Step 6: Final answer
x = 339,154.53
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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.