Finding the Fourth Proportional to 744,354.18, 1,027,442.79 and 438,409.89
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Solution
The fourth proportional to 744,354.18, 1,027,442.79 and 438,409.89 is: 605,143.48
Step by Step Solution
- Step 1: Write the proportion equation
744,354.18 : 1,027,442.79 = 438,409.89 : x - Step 2: Convert to fraction form
744,354.18/1,027,442.79 = 438,409.89/x - Step 3: Cross multiply
744,354.18x = 1,027,442.79 × 438,409.89 - Step 4: Simplify right side
744,354.18x = 450,441,080,545.19 - Step 5: Solve for x
x = 450,441,080,545.19/744,354.18 - Step 6: Final answer
x = 605,143.48
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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.