Finding the Fourth Proportional to 2,124,551.84, 2,931,789.74 and 1,206,778.10
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Solution
The fourth proportional to 2,124,551.84, 2,931,789.74 and 1,206,778.10 is: 1,665,301.63
Step by Step Solution
- Step 1: Write the proportion equation
2,124,551.84 : 2,931,789.74 = 1,206,778.10 : x - Step 2: Convert to fraction form
2,124,551.84/2,931,789.74 = 1,206,778.10/x - Step 3: Cross multiply
2,124,551.84x = 2,931,789.74 × 1,206,778.10 - Step 4: Simplify right side
2,124,551.84x = 3,538,019,631,343.85 - Step 5: Solve for x
x = 3,538,019,631,343.85/2,124,551.84 - Step 6: Final answer
x = 1,665,301.63
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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.