Finding the Fourth Proportional to 429,467.67, 642,918.47 and 260,475.75
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Solution
The fourth proportional to 429,467.67, 642,918.47 and 260,475.75 is: 389,935.45
Step by Step Solution
- Step 1: Write the proportion equation
429,467.67 : 642,918.47 = 260,475.75 : x - Step 2: Convert to fraction form
429,467.67/642,918.47 = 260,475.75/x - Step 3: Cross multiply
429,467.67x = 642,918.47 × 260,475.75 - Step 4: Simplify right side
429,467.67x = 167,464,669,359.72 - Step 5: Solve for x
x = 167,464,669,359.72/429,467.67 - Step 6: Final answer
x = 389,935.45
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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.