Finding the Fourth Proportional to 859,031.70, 1,185,431.27 and 477,083.09
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Solution
The fourth proportional to 859,031.70, 1,185,431.27 and 477,083.09 is: 658,356.62
Step by Step Solution
- Step 1: Write the proportion equation
859,031.70 : 1,185,431.27 = 477,083.09 : x - Step 2: Convert to fraction form
859,031.70/1,185,431.27 = 477,083.09/x - Step 3: Cross multiply
859,031.70x = 1,185,431.27 × 477,083.09 - Step 4: Simplify right side
859,031.70x = 565,549,209,702.78 - Step 5: Solve for x
x = 565,549,209,702.78/859,031.70 - Step 6: Final answer
x = 658,356.62
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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.