Finding the Fourth Proportional to 1,286,889.08, 1,775,169.08 and 802,613.46
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Solution
The fourth proportional to 1,286,889.08, 1,775,169.08 and 802,613.46 is: 1,107,146.40
Step by Step Solution
- Step 1: Write the proportion equation
1,286,889.08 : 1,775,169.08 = 802,613.46 : x - Step 2: Convert to fraction form
1,286,889.08/1,775,169.08 = 802,613.46/x - Step 3: Cross multiply
1,286,889.08x = 1,775,169.08 × 802,613.46 - Step 4: Simplify right side
1,286,889.08x = 1,424,774,607,552.13 - Step 5: Solve for x
x = 1,424,774,607,552.13/1,286,889.08 - Step 6: Final answer
x = 1,107,146.40
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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.