Finding the Fourth Proportional to 527,987.44, 727,917.80 and 419,451.92
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Solution
The fourth proportional to 527,987.44, 727,917.80 and 419,451.92 is: 578,283.68
Step by Step Solution
- Step 1: Write the proportion equation
527,987.44 : 727,917.80 = 419,451.92 : x - Step 2: Convert to fraction form
527,987.44/727,917.80 = 419,451.92/x - Step 3: Cross multiply
527,987.44x = 727,917.80 × 419,451.92 - Step 4: Simplify right side
527,987.44x = 305,326,518,812.18 - Step 5: Solve for x
x = 305,326,518,812.18/527,987.44 - Step 6: Final answer
x = 578,283.68
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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.