Finding the Fourth Proportional to 770,423.20, 1,063,177.92 and 430,891.20
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Solution
The fourth proportional to 770,423.20, 1,063,177.92 and 430,891.20 is: 594,626.45
Step by Step Solution
- Step 1: Write the proportion equation
770,423.20 : 1,063,177.92 = 430,891.20 : x - Step 2: Convert to fraction form
770,423.20/1,063,177.92 = 430,891.20/x - Step 3: Cross multiply
770,423.20x = 1,063,177.92 × 430,891.20 - Step 4: Simplify right side
770,423.20x = 458,114,009,762.30 - Step 5: Solve for x
x = 458,114,009,762.30/770,423.20 - Step 6: Final answer
x = 594,626.45
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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.