Finding the Fourth Proportional to 719,443.98, 992,952.75 and 687,556.62
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Solution
The fourth proportional to 719,443.98, 992,952.75 and 687,556.62 is: 948,942.87
Step by Step Solution
- Step 1: Write the proportion equation
719,443.98 : 992,952.75 = 687,556.62 : x - Step 2: Convert to fraction form
719,443.98/992,952.75 = 687,556.62/x - Step 3: Cross multiply
719,443.98x = 992,952.75 × 687,556.62 - Step 4: Simplify right side
719,443.98x = 682,711,236,609.71 - Step 5: Solve for x
x = 682,711,236,609.71/719,443.98 - Step 6: Final answer
x = 948,942.87
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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.