Finding the Fourth Proportional to 1,642,539.97, 2,266,681.07 and 917,397.75
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Solution
The fourth proportional to 1,642,539.97, 2,266,681.07 and 917,397.75 is: 1,265,995.44
Step by Step Solution
- Step 1: Write the proportion equation
1,642,539.97 : 2,266,681.07 = 917,397.75 : x - Step 2: Convert to fraction form
1,642,539.97/2,266,681.07 = 917,397.75/x - Step 3: Cross multiply
1,642,539.97x = 2,266,681.07 × 917,397.75 - Step 4: Simplify right side
1,642,539.97x = 2,079,448,106,468.70 - Step 5: Solve for x
x = 2,079,448,106,468.70/1,642,539.97 - Step 6: Final answer
x = 1,265,995.44
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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.