Finding the Fourth Proportional to 775,203.12, 1,069,840.17 and 465,117.30
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Solution
The fourth proportional to 775,203.12, 1,069,840.17 and 465,117.30 is: 641,897.79
Step by Step Solution
- Step 1: Write the proportion equation
775,203.12 : 1,069,840.17 = 465,117.30 : x - Step 2: Convert to fraction form
775,203.12/1,069,840.17 = 465,117.30/x - Step 3: Cross multiply
775,203.12x = 1,069,840.17 × 465,117.30 - Step 4: Simplify right side
775,203.12x = 497,601,171,301.94 - Step 5: Solve for x
x = 497,601,171,301.94/775,203.12 - Step 6: Final answer
x = 641,897.79
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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.