Finding the Fourth Proportional to 493,996.79, 681,706.73 and 279,132.26
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Solution
The fourth proportional to 493,996.79, 681,706.73 and 279,132.26 is: 385,197.52
Step by Step Solution
- Step 1: Write the proportion equation
493,996.79 : 681,706.73 = 279,132.26 : x - Step 2: Convert to fraction form
493,996.79/681,706.73 = 279,132.26/x - Step 3: Cross multiply
493,996.79x = 681,706.73 × 279,132.26 - Step 4: Simplify right side
493,996.79x = 190,286,337,491.41 - Step 5: Solve for x
x = 190,286,337,491.41/493,996.79 - Step 6: Final answer
x = 385,197.52
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1.5x scale
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.