Finding the Fourth Proportional to 4,319,821.72, 5,961,240.14 and 2,386,040.78
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Solution
The fourth proportional to 4,319,821.72, 5,961,240.14 and 2,386,040.78 is: 3,292,673.40
Step by Step Solution
- Step 1: Write the proportion equation
4,319,821.72 : 5,961,240.14 = 2,386,040.78 : x - Step 2: Convert to fraction form
4,319,821.72/5,961,240.14 = 2,386,040.78/x - Step 3: Cross multiply
4,319,821.72x = 5,961,240.14 × 2,386,040.78 - Step 4: Simplify right side
4,319,821.72x = 14,223,762,060,749.14 - Step 5: Solve for x
x = 14,223,762,060,749.14/4,319,821.72 - Step 6: Final answer
x = 3,292,673.40
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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.