Finding the Fourth Proportional to 1,396,386.10, 2,094,579.15 and 686,267.20
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Solution
The fourth proportional to 1,396,386.10, 2,094,579.15 and 686,267.20 is: 1,029,400.80
Step by Step Solution
- Step 1: Write the proportion equation
1,396,386.10 : 2,094,579.15 = 686,267.20 : x - Step 2: Convert to fraction form
1,396,386.10/2,094,579.15 = 686,267.20/x - Step 3: Cross multiply
1,396,386.10x = 2,094,579.15 × 686,267.20 - Step 4: Simplify right side
1,396,386.10x = 1,437,440,968,448.88 - Step 5: Solve for x
x = 1,437,440,968,448.88/1,396,386.10 - Step 6: Final answer
x = 1,029,400.80
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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.