Finding the Third Proportional to 485,440 and 728,160
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Solution
The third proportional to 485,440 and 728,160 is: 1,092,240
Step by Step Solution
- Step 1: Write the proportion equation
485,440 : 728,160 = 728,160 : x - Step 2: Convert to fraction form
485,440/728,160 = 728,160/x - Step 3: Cross multiply
485,440x = 728,160 × 728,160 - Step 4: Simplify right side
485,440x = 530,216,985,600 - Step 5: Solve for x
x = 530,216,985,600/485,440 - Step 6: Final answer
x = 1,092,240
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.