Finding the Fourth Proportional to 754,781.92, 1,132,135.98 and 281,430.34
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Solution
The fourth proportional to 754,781.92, 1,132,135.98 and 281,430.34 is: 422,131.75
Step by Step Solution
- Step 1: Write the proportion equation
754,781.92 : 1,132,135.98 = 281,430.34 : x - Step 2: Convert to fraction form
754,781.92/1,132,135.98 = 281,430.34/x - Step 3: Cross multiply
754,781.92x = 1,132,135.98 × 281,430.34 - Step 4: Simplify right side
754,781.92x = 318,617,413,777.63 - Step 5: Solve for x
x = 318,617,413,777.63/754,781.92 - Step 6: Final answer
x = 422,131.75
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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.