Finding the Fourth Proportional to 1,786,945.76, 2,465,943.60 and 971,130.08
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Solution
The fourth proportional to 1,786,945.76, 2,465,943.60 and 971,130.08 is: 1,340,136.93
Step by Step Solution
- Step 1: Write the proportion equation
1,786,945.76 : 2,465,943.60 = 971,130.08 : x - Step 2: Convert to fraction form
1,786,945.76/2,465,943.60 = 971,130.08/x - Step 3: Cross multiply
1,786,945.76x = 2,465,943.60 × 971,130.08 - Step 4: Simplify right side
1,786,945.76x = 2,394,752,005,543.49 - Step 5: Solve for x
x = 2,394,752,005,543.49/1,786,945.76 - Step 6: Final answer
x = 1,340,136.93
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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.