Finding the Fourth Proportional to 1,368,393.14, 1,888,377.79 and 764,781.14
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Solution
The fourth proportional to 1,368,393.14, 1,888,377.79 and 764,781.14 is: 1,055,395.32
Step by Step Solution
- Step 1: Write the proportion equation
1,368,393.14 : 1,888,377.79 = 764,781.14 : x - Step 2: Convert to fraction form
1,368,393.14/1,888,377.79 = 764,781.14/x - Step 3: Cross multiply
1,368,393.14x = 1,888,377.79 × 764,781.14 - Step 4: Simplify right side
1,368,393.14x = 1,444,195,718,986.88 - Step 5: Solve for x
x = 1,444,195,718,986.88/1,368,393.14 - Step 6: Final answer
x = 1,055,395.32
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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.