Finding the Fourth Proportional to 639,425.97, 882,407.93 and 352,946.12
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Solution
The fourth proportional to 639,425.97, 882,407.93 and 352,946.12 is: 487,065.69
Step by Step Solution
- Step 1: Write the proportion equation
639,425.97 : 882,407.93 = 352,946.12 : x - Step 2: Convert to fraction form
639,425.97/882,407.93 = 352,946.12/x - Step 3: Cross multiply
639,425.97x = 882,407.93 × 352,946.12 - Step 4: Simplify right side
639,425.97x = 311,442,448,973.96 - Step 5: Solve for x
x = 311,442,448,973.96/639,425.97 - Step 6: Final answer
x = 487,065.69
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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.