Finding the Fourth Proportional to 1,396,386.60, 2,094,579.90 and 686,267.70
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Solution
The fourth proportional to 1,396,386.60, 2,094,579.90 and 686,267.70 is: 1,029,401.55
Step by Step Solution
- Step 1: Write the proportion equation
1,396,386.60 : 2,094,579.90 = 686,267.70 : x - Step 2: Convert to fraction form
1,396,386.60/2,094,579.90 = 686,267.70/x - Step 3: Cross multiply
1,396,386.60x = 2,094,579.90 × 686,267.70 - Step 4: Simplify right side
1,396,386.60x = 1,437,442,530,439.23 - Step 5: Solve for x
x = 1,437,442,530,439.23/1,396,386.60 - Step 6: Final answer
x = 1,029,401.55
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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.