Finding the Fourth Proportional to 1,340,260.87, 1,849,572.21 and 728,415.19
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Solution
The fourth proportional to 1,340,260.87, 1,849,572.21 and 728,415.19 is: 1,005,219.60
Step by Step Solution
- Step 1: Write the proportion equation
1,340,260.87 : 1,849,572.21 = 728,415.19 : x - Step 2: Convert to fraction form
1,340,260.87/1,849,572.21 = 728,415.19/x - Step 3: Cross multiply
1,340,260.87x = 1,849,572.21 × 728,415.19 - Step 4: Simplify right side
1,340,260.87x = 1,347,256,490,873.50 - Step 5: Solve for x
x = 1,347,256,490,873.50/1,340,260.87 - Step 6: Final answer
x = 1,005,219.60
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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.