Finding the Fourth Proportional to 3,158,563.18, 4,358,817.19 and 1,708,258.62
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Solution
The fourth proportional to 3,158,563.18, 4,358,817.19 and 1,708,258.62 is: 2,357,396.90
Step by Step Solution
- Step 1: Write the proportion equation
3,158,563.18 : 4,358,817.19 = 1,708,258.62 : x - Step 2: Convert to fraction form
3,158,563.18/4,358,817.19 = 1,708,258.62/x - Step 3: Cross multiply
3,158,563.18x = 4,358,817.19 × 1,708,258.62 - Step 4: Simplify right side
3,158,563.18x = 7,445,987,037,821.68 - Step 5: Solve for x
x = 7,445,987,037,821.68/3,158,563.18 - Step 6: Final answer
x = 2,357,396.90
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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.