Finding the Fourth Proportional to 725,690.07, 1,088,764.74 and 326,365.74
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Solution
The fourth proportional to 725,690.07, 1,088,764.74 and 326,365.74 is: 489,651.88
Step by Step Solution
- Step 1: Write the proportion equation
725,690.07 : 1,088,764.74 = 326,365.74 : x - Step 2: Convert to fraction form
725,690.07/1,088,764.74 = 326,365.74/x - Step 3: Cross multiply
725,690.07x = 1,088,764.74 × 326,365.74 - Step 4: Simplify right side
725,690.07x = 355,335,510,056.01 - Step 5: Solve for x
x = 355,335,510,056.01/725,690.07 - Step 6: Final answer
x = 489,651.88
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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.