Finding the Fourth Proportional to 3,908,372.99, 5,862,277.87 and 1,212,628.79
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Solution
The fourth proportional to 3,908,372.99, 5,862,277.87 and 1,212,628.79 is: 1,818,855.82
Step by Step Solution
- Step 1: Write the proportion equation
3,908,372.99 : 5,862,277.87 = 1,212,628.79 : x - Step 2: Convert to fraction form
3,908,372.99/5,862,277.87 = 1,212,628.79/x - Step 3: Cross multiply
3,908,372.99x = 5,862,277.87 × 1,212,628.79 - Step 4: Simplify right side
3,908,372.99x = 7,108,766,931,766 - Step 5: Solve for x
x = 7,108,766,931,766/3,908,372.99 - Step 6: Final answer
x = 1,818,855.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.