Finding the Fourth Proportional to 931,357.65, 1,395,867.79 and 398,251.79
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Solution
The fourth proportional to 931,357.65, 1,395,867.79 and 398,251.79 is: 596,877.95
Step by Step Solution
- Step 1: Write the proportion equation
931,357.65 : 1,395,867.79 = 398,251.79 : x - Step 2: Convert to fraction form
931,357.65/1,395,867.79 = 398,251.79/x - Step 3: Cross multiply
931,357.65x = 1,395,867.79 × 398,251.79 - Step 4: Simplify right side
931,357.65x = 555,906,843,979.59 - Step 5: Solve for x
x = 555,906,843,979.59/931,357.65 - Step 6: Final answer
x = 596,877.95
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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.