Finding the Fourth Proportional to 1,508,197.32, 2,081,259.36 and 829,128.96
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Solution
The fourth proportional to 1,508,197.32, 2,081,259.36 and 829,128.96 is: 1,144,168.86
Step by Step Solution
- Step 1: Write the proportion equation
1,508,197.32 : 2,081,259.36 = 829,128.96 : x - Step 2: Convert to fraction form
1,508,197.32/2,081,259.36 = 829,128.96/x - Step 3: Cross multiply
1,508,197.32x = 2,081,259.36 × 829,128.96 - Step 4: Simplify right side
1,508,197.32x = 1,725,632,408,647.07 - Step 5: Solve for x
x = 1,725,632,408,647.07/1,508,197.32 - Step 6: Final answer
x = 1,144,168.86
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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.