Finding the Fourth Proportional to 1,286,393.74, 1,775,332.38 and 713,618.44
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Solution
The fourth proportional to 1,286,393.74, 1,775,332.38 and 713,618.44 is: 984,853.93
Step by Step Solution
- Step 1: Write the proportion equation
1,286,393.74 : 1,775,332.38 = 713,618.44 : x - Step 2: Convert to fraction form
1,286,393.74/1,775,332.38 = 713,618.44/x - Step 3: Cross multiply
1,286,393.74x = 1,775,332.38 × 713,618.44 - Step 4: Simplify right side
1,286,393.74x = 1,266,909,921,734.83 - Step 5: Solve for x
x = 1,266,909,921,734.83/1,286,393.74 - Step 6: Final answer
x = 984,853.93
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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.