Finding the Fourth Proportional to 1,207,817.19, 1,666,793.07 and 663,987.96
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Solution
The fourth proportional to 1,207,817.19, 1,666,793.07 and 663,987.96 is: 916,306.32
Step by Step Solution
- Step 1: Write the proportion equation
1,207,817.19 : 1,666,793.07 = 663,987.96 : x - Step 2: Convert to fraction form
1,207,817.19/1,666,793.07 = 663,987.96/x - Step 3: Cross multiply
1,207,817.19x = 1,666,793.07 × 663,987.96 - Step 4: Simplify right side
1,207,817.19x = 1,106,730,530,291.44 - Step 5: Solve for x
x = 1,106,730,530,291.44/1,207,817.19 - Step 6: Final answer
x = 916,306.32
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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.