Finding the Fourth Proportional to 639,320.88, 882,264.69 and 348,935.12
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Solution
The fourth proportional to 639,320.88, 882,264.69 and 348,935.12 is: 481,531.49
Step by Step Solution
- Step 1: Write the proportion equation
639,320.88 : 882,264.69 = 348,935.12 : x - Step 2: Convert to fraction form
639,320.88/882,264.69 = 348,935.12/x - Step 3: Cross multiply
639,320.88x = 882,264.69 × 348,935.12 - Step 4: Simplify right side
639,320.88x = 307,853,133,364.78 - Step 5: Solve for x
x = 307,853,133,364.78/639,320.88 - Step 6: Final answer
x = 481,531.49
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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.