Finding the Fourth Proportional to 639,407.39, 882,382.28 and 352,927.55
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Solution
The fourth proportional to 639,407.39, 882,382.28 and 352,927.55 is: 487,040.07
Step by Step Solution
- Step 1: Write the proportion equation
639,407.39 : 882,382.28 = 352,927.55 : x - Step 2: Convert to fraction form
639,407.39/882,382.28 = 352,927.55/x - Step 3: Cross multiply
639,407.39x = 882,382.28 × 352,927.55 - Step 4: Simplify right side
639,407.39x = 311,417,016,685.13 - Step 5: Solve for x
x = 311,417,016,685.13/639,407.39 - Step 6: Final answer
x = 487,040.07
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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.