Finding the Fourth Proportional to 692,442.20, 1,038,036.36 and 271,605.08
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Solution
The fourth proportional to 692,442.20, 1,038,036.36 and 271,605.08 is: 407,161.71
Step by Step Solution
- Step 1: Write the proportion equation
692,442.20 : 1,038,036.36 = 271,605.08 : x - Step 2: Convert to fraction form
692,442.20/1,038,036.36 = 271,605.08/x - Step 3: Cross multiply
692,442.20x = 1,038,036.36 × 271,605.08 - Step 4: Simplify right side
692,442.20x = 281,935,948,600.71 - Step 5: Solve for x
x = 281,935,948,600.71/692,442.20 - Step 6: Final answer
x = 407,161.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.