Finding the Fourth Proportional to 413,821.60, 619,695.60 and 272,816.80
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Solution
The fourth proportional to 413,821.60, 619,695.60 and 272,816.80 is: 408,541.68
Step by Step Solution
- Step 1: Write the proportion equation
413,821.60 : 619,695.60 = 272,816.80 : x - Step 2: Convert to fraction form
413,821.60/619,695.60 = 272,816.80/x - Step 3: Cross multiply
413,821.60x = 619,695.60 × 272,816.80 - Step 4: Simplify right side
413,821.60x = 169,063,370,566.08 - Step 5: Solve for x
x = 169,063,370,566.08/413,821.60 - Step 6: Final answer
x = 408,541.68
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1.5x scale
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.