Finding the Fourth Proportional to 642,937.37, 962,514.19 and 429,175.08
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Solution
The fourth proportional to 642,937.37, 962,514.19 and 429,175.08 is: 642,499.75
Step by Step Solution
- Step 1: Write the proportion equation
642,937.37 : 962,514.19 = 429,175.08 : x - Step 2: Convert to fraction form
642,937.37/962,514.19 = 429,175.08/x - Step 3: Cross multiply
642,937.37x = 962,514.19 × 429,175.08 - Step 4: Simplify right side
642,937.37x = 413,087,099,681.81 - Step 5: Solve for x
x = 413,087,099,681.81/642,937.37 - Step 6: Final answer
x = 642,499.75
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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.