Finding the Fourth Proportional to 1,247,584.60, 1,721,664.68 and 674,623.41
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Solution
The fourth proportional to 1,247,584.60, 1,721,664.68 and 674,623.41 is: 930,979.19
Step by Step Solution
- Step 1: Write the proportion equation
1,247,584.60 : 1,721,664.68 = 674,623.41 : x - Step 2: Convert to fraction form
1,247,584.60/1,721,664.68 = 674,623.41/x - Step 3: Cross multiply
1,247,584.60x = 1,721,664.68 × 674,623.41 - Step 4: Simplify right side
1,247,584.60x = 1,161,475,297,298.16 - Step 5: Solve for x
x = 1,161,475,297,298.16/1,247,584.60 - Step 6: Final answer
x = 930,979.19
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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.