Finding the Fourth Proportional to 1,290,664.79, 1,781,160.68 and 709,912.48
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Solution
The fourth proportional to 1,290,664.79, 1,781,160.68 and 709,912.48 is: 979,703.02
Step by Step Solution
- Step 1: Write the proportion equation
1,290,664.79 : 1,781,160.68 = 709,912.48 : x - Step 2: Convert to fraction form
1,290,664.79/1,781,160.68 = 709,912.48/x - Step 3: Cross multiply
1,290,664.79x = 1,781,160.68 × 709,912.48 - Step 4: Simplify right side
1,290,664.79x = 1,264,468,195,617.29 - Step 5: Solve for x
x = 1,264,468,195,617.29/1,290,664.79 - Step 6: Final answer
x = 979,703.02
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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.