Finding the Fourth Proportional to 1,605,169.12, 2,407,729.74 and 390,754.84
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Solution
The fourth proportional to 1,605,169.12, 2,407,729.74 and 390,754.84 is: 586,126.43
Step by Step Solution
- Step 1: Write the proportion equation
1,605,169.12 : 2,407,729.74 = 390,754.84 : x - Step 2: Convert to fraction form
1,605,169.12/2,407,729.74 = 390,754.84/x - Step 3: Cross multiply
1,605,169.12x = 2,407,729.74 × 390,754.84 - Step 4: Simplify right side
1,605,169.12x = 940,832,049,316.94 - Step 5: Solve for x
x = 940,832,049,316.94/1,605,169.12 - Step 6: Final answer
x = 586,126.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.