Finding the Fourth Proportional to 1,189,546.42, 1,637,425.28 and 1,026,719.48
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Solution
The fourth proportional to 1,189,546.42, 1,637,425.28 and 1,026,719.48 is: 1,413,291.99
Step by Step Solution
- Step 1: Write the proportion equation
1,189,546.42 : 1,637,425.28 = 1,026,719.48 : x - Step 2: Convert to fraction form
1,189,546.42/1,637,425.28 = 1,026,719.48/x - Step 3: Cross multiply
1,189,546.42x = 1,637,425.28 × 1,026,719.48 - Step 4: Simplify right side
1,189,546.42x = 1,681,176,432,020.45 - Step 5: Solve for x
x = 1,681,176,432,020.45/1,189,546.42 - Step 6: Final answer
x = 1,413,291.99
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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.