Finding the Fourth Proportional to 1,389,618.18, 2,084,595.39 and 490,875.99
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Solution
The fourth proportional to 1,389,618.18, 2,084,595.39 and 490,875.99 is: 736,373.37
Step by Step Solution
- Step 1: Write the proportion equation
1,389,618.18 : 2,084,595.39 = 490,875.99 : x - Step 2: Convert to fraction form
1,389,618.18/2,084,595.39 = 490,875.99/x - Step 3: Cross multiply
1,389,618.18x = 2,084,595.39 × 490,875.99 - Step 4: Simplify right side
1,389,618.18x = 1,023,277,823,361.31 - Step 5: Solve for x
x = 1,023,277,823,361.31/1,389,618.18 - Step 6: Final answer
x = 736,373.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.