Finding the Fourth Proportional to 658,442.49, 908,644.95 and 356,636.49
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Solution
The fourth proportional to 658,442.49, 908,644.95 and 356,636.49 is: 492,155.28
Step by Step Solution
- Step 1: Write the proportion equation
658,442.49 : 908,644.95 = 356,636.49 : x - Step 2: Convert to fraction form
658,442.49/908,644.95 = 356,636.49/x - Step 3: Cross multiply
658,442.49x = 908,644.95 × 356,636.49 - Step 4: Simplify right side
658,442.49x = 324,055,945,624.23 - Step 5: Solve for x
x = 324,055,945,624.23/658,442.49 - Step 6: Final answer
x = 492,155.28
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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.