Finding the Fourth Proportional to 483,048.40, 724,702.20 and 430,819.60
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Solution
The fourth proportional to 483,048.40, 724,702.20 and 430,819.60 is: 646,344.99
Step by Step Solution
- Step 1: Write the proportion equation
483,048.40 : 724,702.20 = 430,819.60 : x - Step 2: Convert to fraction form
483,048.40/724,702.20 = 430,819.60/x - Step 3: Cross multiply
483,048.40x = 724,702.20 × 430,819.60 - Step 4: Simplify right side
483,048.40x = 312,215,911,923.12 - Step 5: Solve for x
x = 312,215,911,923.12/483,048.40 - Step 6: Final answer
x = 646,344.99
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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.