Finding the Fourth Proportional to 719,405.52, 992,779.81 and 397,115.84
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Solution
The fourth proportional to 719,405.52, 992,779.81 and 397,115.84 is: 548,019.96
Step by Step Solution
- Step 1: Write the proportion equation
719,405.52 : 992,779.81 = 397,115.84 : x - Step 2: Convert to fraction form
719,405.52/992,779.81 = 397,115.84/x - Step 3: Cross multiply
719,405.52x = 992,779.81 × 397,115.84 - Step 4: Simplify right side
719,405.52x = 394,248,581,233.71 - Step 5: Solve for x
x = 394,248,581,233.71/719,405.52 - Step 6: Final answer
x = 548,019.96
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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.