Finding the Fourth Proportional to 864,326.11, 1,192,789.14 and 477,140.63
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Solution
The fourth proportional to 864,326.11, 1,192,789.14 and 477,140.63 is: 658,464.62
Step by Step Solution
- Step 1: Write the proportion equation
864,326.11 : 1,192,789.14 = 477,140.63 : x - Step 2: Convert to fraction form
864,326.11/1,192,789.14 = 477,140.63/x - Step 3: Cross multiply
864,326.11x = 1,192,789.14 × 477,140.63 - Step 4: Simplify right side
864,326.11x = 569,128,159,331.06 - Step 5: Solve for x
x = 569,128,159,331.06/864,326.11 - Step 6: Final answer
x = 658,464.62
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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.