Finding the Fourth Proportional to 1,982,257.92, 2,735,428.32 and 1,122,800.94
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Solution
The fourth proportional to 1,982,257.92, 2,735,428.32 and 1,122,800.94 is: 1,549,415.67
Step by Step Solution
- Step 1: Write the proportion equation
1,982,257.92 : 2,735,428.32 = 1,122,800.94 : x - Step 2: Convert to fraction form
1,982,257.92/2,735,428.32 = 1,122,800.94/x - Step 3: Cross multiply
1,982,257.92x = 2,735,428.32 × 1,122,800.94 - Step 4: Simplify right side
1,982,257.92x = 3,071,341,488,998.62 - Step 5: Solve for x
x = 3,071,341,488,998.62/1,982,257.92 - Step 6: Final answer
x = 1,549,415.67
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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.