Finding the Fourth Proportional to 651,119.70, 976,679.55 and 402,287.70
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Solution
The fourth proportional to 651,119.70, 976,679.55 and 402,287.70 is: 603,431.55
Step by Step Solution
- Step 1: Write the proportion equation
651,119.70 : 976,679.55 = 402,287.70 : x - Step 2: Convert to fraction form
651,119.70/976,679.55 = 402,287.70/x - Step 3: Cross multiply
651,119.70x = 976,679.55 × 402,287.70 - Step 4: Simplify right side
651,119.70x = 392,906,169,806.54 - Step 5: Solve for x
x = 392,906,169,806.54/651,119.70 - Step 6: Final answer
x = 603,431.55
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Similar ratio
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1.5x scale
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.