Finding the Fourth Proportional to 1,339,637.90, 2,009,456.85 and 1,330,306.70
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Solution
The fourth proportional to 1,339,637.90, 2,009,456.85 and 1,330,306.70 is: 1,995,460.05
Step by Step Solution
- Step 1: Write the proportion equation
1,339,637.90 : 2,009,456.85 = 1,330,306.70 : x - Step 2: Convert to fraction form
1,339,637.90/2,009,456.85 = 1,330,306.70/x - Step 3: Cross multiply
1,339,637.90x = 2,009,456.85 × 1,330,306.70 - Step 4: Simplify right side
1,339,637.90x = 2,673,193,910,915.90 - Step 5: Solve for x
x = 2,673,193,910,915.90/1,339,637.90 - Step 6: Final answer
x = 1,995,460.05
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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.