Finding the Fourth Proportional to 719,534.40, 992,931.48 and 397,237.68
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Solution
The fourth proportional to 719,534.40, 992,931.48 and 397,237.68 is: 548,173.65
Step by Step Solution
- Step 1: Write the proportion equation
719,534.40 : 992,931.48 = 397,237.68 : x - Step 2: Convert to fraction form
719,534.40/992,931.48 = 397,237.68/x - Step 3: Cross multiply
719,534.40x = 992,931.48 × 397,237.68 - Step 4: Simplify right side
719,534.40x = 394,429,797,514.17 - Step 5: Solve for x
x = 394,429,797,514.17/719,534.40 - Step 6: Final answer
x = 548,173.65
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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.