Finding the Fourth Proportional to 1,508,664.42, 2,081,945.68 and 820,336.70
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Solution
The fourth proportional to 1,508,664.42, 2,081,945.68 and 820,336.70 is: 1,132,058.55
Step by Step Solution
- Step 1: Write the proportion equation
1,508,664.42 : 2,081,945.68 = 820,336.70 : x - Step 2: Convert to fraction form
1,508,664.42/2,081,945.68 = 820,336.70/x - Step 3: Cross multiply
1,508,664.42x = 2,081,945.68 × 820,336.70 - Step 4: Simplify right side
1,508,664.42x = 1,707,896,451,864.48 - Step 5: Solve for x
x = 1,707,896,451,864.48/1,508,664.42 - Step 6: Final answer
x = 1,132,058.55
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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.