Finding the Fourth Proportional to 1,225,616.88, 1,690,660.56 and 735,459.60
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Solution
The fourth proportional to 1,225,616.88, 1,690,660.56 and 735,459.60 is: 1,014,519.76
Step by Step Solution
- Step 1: Write the proportion equation
1,225,616.88 : 1,690,660.56 = 735,459.60 : x - Step 2: Convert to fraction form
1,225,616.88/1,690,660.56 = 735,459.60/x - Step 3: Cross multiply
1,225,616.88x = 1,690,660.56 × 735,459.60 - Step 4: Simplify right side
1,225,616.88x = 1,243,412,539,193.38 - Step 5: Solve for x
x = 1,243,412,539,193.38/1,225,616.88 - Step 6: Final answer
x = 1,014,519.76
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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.