Finding the Fourth Proportional to 1,023,638.40, 1,535,572.80 and 313,660.80
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Solution
The fourth proportional to 1,023,638.40, 1,535,572.80 and 313,660.80 is: 470,526.50
Step by Step Solution
- Step 1: Write the proportion equation
1,023,638.40 : 1,535,572.80 = 313,660.80 : x - Step 2: Convert to fraction form
1,023,638.40/1,535,572.80 = 313,660.80/x - Step 3: Cross multiply
1,023,638.40x = 1,535,572.80 × 313,660.80 - Step 4: Simplify right side
1,023,638.40x = 481,648,992,906.24 - Step 5: Solve for x
x = 481,648,992,906.24/1,023,638.40 - Step 6: Final answer
x = 470,526.50
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1.5x scale
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.