Finding the Fourth Proportional to 472,409.80, 708,614.70 and 354,311.80
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Solution
The fourth proportional to 472,409.80, 708,614.70 and 354,311.80 is: 531,467.70
Step by Step Solution
- Step 1: Write the proportion equation
472,409.80 : 708,614.70 = 354,311.80 : x - Step 2: Convert to fraction form
472,409.80/708,614.70 = 354,311.80/x - Step 3: Cross multiply
472,409.80x = 708,614.70 × 354,311.80 - Step 4: Simplify right side
472,409.80x = 251,070,549,863.46 - Step 5: Solve for x
x = 251,070,549,863.46/472,409.80 - Step 6: Final answer
x = 531,467.70
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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.