Finding the Fourth Proportional to 716,119.74, 988,225.50 and 393,829.84
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Solution
The fourth proportional to 716,119.74, 988,225.50 and 393,829.84 is: 543,474.32
Step by Step Solution
- Step 1: Write the proportion equation
716,119.74 : 988,225.50 = 393,829.84 : x - Step 2: Convert to fraction form
716,119.74/988,225.50 = 393,829.84/x - Step 3: Cross multiply
716,119.74x = 988,225.50 × 393,829.84 - Step 4: Simplify right side
716,119.74x = 389,192,690,548.92 - Step 5: Solve for x
x = 389,192,690,548.92/716,119.74 - Step 6: Final answer
x = 543,474.32
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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.