Finding the Fourth Proportional to 2,216,172.20, 3,058,134.08 and 1,249,540.07
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Solution
The fourth proportional to 2,216,172.20, 3,058,134.08 and 1,249,540.07 is: 1,724,261.80
Step by Step Solution
- Step 1: Write the proportion equation
2,216,172.20 : 3,058,134.08 = 1,249,540.07 : x - Step 2: Convert to fraction form
2,216,172.20/3,058,134.08 = 1,249,540.07/x - Step 3: Cross multiply
2,216,172.20x = 3,058,134.08 × 1,249,540.07 - Step 4: Simplify right side
2,216,172.20x = 3,821,261,050,854.22 - Step 5: Solve for x
x = 3,821,261,050,854.22/2,216,172.20 - Step 6: Final answer
x = 1,724,261.80
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1.5x scale
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.