Finding the Fourth Proportional to 437,421.80, 603,516.20 and 284,684.70
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Solution
The fourth proportional to 437,421.80, 603,516.20 and 284,684.70 is: 392,782.96
Step by Step Solution
- Step 1: Write the proportion equation
437,421.80 : 603,516.20 = 284,684.70 : x - Step 2: Convert to fraction form
437,421.80/603,516.20 = 284,684.70/x - Step 3: Cross multiply
437,421.80x = 603,516.20 × 284,684.70 - Step 4: Simplify right side
437,421.80x = 171,811,828,342.14 - Step 5: Solve for x
x = 171,811,828,342.14/437,421.80 - Step 6: Final answer
x = 392,782.96
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1.5x scale
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.