Finding the Fourth Proportional to 2,657,138.70, 3,985,708.05 and 1,058,879.10
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Solution
The fourth proportional to 2,657,138.70, 3,985,708.05 and 1,058,879.10 is: 1,588,318.65
Step by Step Solution
- Step 1: Write the proportion equation
2,657,138.70 : 3,985,708.05 = 1,058,879.10 : x - Step 2: Convert to fraction form
2,657,138.70/3,985,708.05 = 1,058,879.10/x - Step 3: Cross multiply
2,657,138.70x = 3,985,708.05 × 1,058,879.10 - Step 4: Simplify right side
2,657,138.70x = 4,220,382,952,846.76 - Step 5: Solve for x
x = 4,220,382,952,846.76/2,657,138.70 - Step 6: Final answer
x = 1,588,318.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.