Finding the Fourth Proportional to 1,340,336.76, 1,849,678.91 and 728,489.58
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Solution
The fourth proportional to 1,340,336.76, 1,849,678.91 and 728,489.58 is: 1,005,323.33
Step by Step Solution
- Step 1: Write the proportion equation
1,340,336.76 : 1,849,678.91 = 728,489.58 : x - Step 2: Convert to fraction form
1,340,336.76/1,849,678.91 = 728,489.58/x - Step 3: Cross multiply
1,340,336.76x = 1,849,678.91 × 728,489.58 - Step 4: Simplify right side
1,340,336.76x = 1,347,471,812,280.76 - Step 5: Solve for x
x = 1,347,471,812,280.76/1,340,336.76 - Step 6: Final answer
x = 1,005,323.33
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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.