Finding the Fourth Proportional to 1,361,318.67, 1,874,568.15 and 1,331,109.99
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Solution
The fourth proportional to 1,361,318.67, 1,874,568.15 and 1,331,109.99 is: 1,832,970.08
Step by Step Solution
- Step 1: Write the proportion equation
1,361,318.67 : 1,874,568.15 = 1,331,109.99 : x - Step 2: Convert to fraction form
1,361,318.67/1,874,568.15 = 1,331,109.99/x - Step 3: Cross multiply
1,361,318.67x = 1,874,568.15 × 1,331,109.99 - Step 4: Simplify right side
1,361,318.67x = 2,495,256,391,400.82 - Step 5: Solve for x
x = 2,495,256,391,400.82/1,361,318.67 - Step 6: Final answer
x = 1,832,970.08
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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.