Finding the Fourth Proportional to 859,871.97, 1,186,614.77 and 477,890.55
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Solution
The fourth proportional to 859,871.97, 1,186,614.77 and 477,890.55 is: 659,484.21
Step by Step Solution
- Step 1: Write the proportion equation
859,871.97 : 1,186,614.77 = 477,890.55 : x - Step 2: Convert to fraction form
859,871.97/1,186,614.77 = 477,890.55/x - Step 3: Cross multiply
859,871.97x = 1,186,614.77 × 477,890.55 - Step 4: Simplify right side
859,871.97x = 567,071,982,683.97 - Step 5: Solve for x
x = 567,071,982,683.97/859,871.97 - Step 6: Final answer
x = 659,484.21
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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.