Finding the Fourth Proportional to 1,914,678.99, 2,642,130.90 and 1,055,237.13
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Solution
The fourth proportional to 1,914,678.99, 2,642,130.90 and 1,055,237.13 is: 1,456,157.74
Step by Step Solution
- Step 1: Write the proportion equation
1,914,678.99 : 2,642,130.90 = 1,055,237.13 : x - Step 2: Convert to fraction form
1,914,678.99/2,642,130.90 = 1,055,237.13/x - Step 3: Cross multiply
1,914,678.99x = 2,642,130.90 × 1,055,237.13 - Step 4: Simplify right side
1,914,678.99x = 2,788,074,628,000.32 - Step 5: Solve for x
x = 2,788,074,628,000.32/1,914,678.99 - Step 6: Final answer
x = 1,456,157.74
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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.