Finding the Fourth Proportional to 1,461,640.80, 2,192,461.20 and 831,784.80
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Solution
The fourth proportional to 1,461,640.80, 2,192,461.20 and 831,784.80 is: 1,247,677.20
Step by Step Solution
- Step 1: Write the proportion equation
1,461,640.80 : 2,192,461.20 = 831,784.80 : x - Step 2: Convert to fraction form
1,461,640.80/2,192,461.20 = 831,784.80/x - Step 3: Cross multiply
1,461,640.80x = 2,192,461.20 × 831,784.80 - Step 4: Simplify right side
1,461,640.80x = 1,823,655,900,749.76 - Step 5: Solve for x
x = 1,823,655,900,749.76/1,461,640.80 - Step 6: Final answer
x = 1,247,677.20
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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.