Finding the Fourth Proportional to 2,164,317.90, 2,986,846.62 and 1,197,432.44
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Solution
The fourth proportional to 2,164,317.90, 2,986,846.62 and 1,197,432.44 is: 1,652,505.41
Step by Step Solution
- Step 1: Write the proportion equation
2,164,317.90 : 2,986,846.62 = 1,197,432.44 : x - Step 2: Convert to fraction form
2,164,317.90/2,986,846.62 = 1,197,432.44/x - Step 3: Cross multiply
2,164,317.90x = 2,986,846.62 × 1,197,432.44 - Step 4: Simplify right side
2,164,317.90x = 3,576,547,030,105.19 - Step 5: Solve for x
x = 3,576,547,030,105.19/2,164,317.90 - Step 6: Final answer
x = 1,652,505.41
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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.