Finding the Fourth Proportional to 1,777,921.60, 2,452,921.76 and 1,013,423.68
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Solution
The fourth proportional to 1,777,921.60, 2,452,921.76 and 1,013,423.68 is: 1,398,176.95
Step by Step Solution
- Step 1: Write the proportion equation
1,777,921.60 : 2,452,921.76 = 1,013,423.68 : x - Step 2: Convert to fraction form
1,777,921.60/2,452,921.76 = 1,013,423.68/x - Step 3: Cross multiply
1,777,921.60x = 2,452,921.76 × 1,013,423.68 - Step 4: Simplify right side
1,777,921.60x = 2,485,848,996,771.28 - Step 5: Solve for x
x = 2,485,848,996,771.28/1,777,921.60 - Step 6: Final answer
x = 1,398,176.95
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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.