Finding the Fourth Proportional to 1,440,489.93, 1,987,705.56 and 859,605.41
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Solution
The fourth proportional to 1,440,489.93, 1,987,705.56 and 859,605.41 is: 1,186,153.69
Step by Step Solution
- Step 1: Write the proportion equation
1,440,489.93 : 1,987,705.56 = 859,605.41 : x - Step 2: Convert to fraction form
1,440,489.93/1,987,705.56 = 859,605.41/x - Step 3: Cross multiply
1,440,489.93x = 1,987,705.56 × 859,605.41 - Step 4: Simplify right side
1,440,489.93x = 1,708,642,452,863.08 - Step 5: Solve for x
x = 1,708,642,452,863.08/1,440,489.93 - Step 6: Final answer
x = 1,186,153.69
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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.