Finding the Fourth Proportional to 1,943,980.26, 2,683,701.38 and 1,420,102.59
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Solution
The fourth proportional to 1,943,980.26, 2,683,701.38 and 1,420,102.59 is: 1,960,478.39
Step by Step Solution
- Step 1: Write the proportion equation
1,943,980.26 : 2,683,701.38 = 1,420,102.59 : x - Step 2: Convert to fraction form
1,943,980.26/2,683,701.38 = 1,420,102.59/x - Step 3: Cross multiply
1,943,980.26x = 2,683,701.38 × 1,420,102.59 - Step 4: Simplify right side
1,943,980.26x = 3,811,131,286,889.60 - Step 5: Solve for x
x = 3,811,131,286,889.60/1,943,980.26 - Step 6: Final answer
x = 1,960,478.39
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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.