Finding the Fourth Proportional to 3,806,747.79, 5,707,840.70 and 1,211,931.15
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Solution
The fourth proportional to 3,806,747.79, 5,707,840.70 and 1,211,931.15 is: 1,817,170.54
Step by Step Solution
- Step 1: Write the proportion equation
3,806,747.79 : 5,707,840.70 = 1,211,931.15 : x - Step 2: Convert to fraction form
3,806,747.79/5,707,840.70 = 1,211,931.15/x - Step 3: Cross multiply
3,806,747.79x = 5,707,840.70 × 1,211,931.15 - Step 4: Simplify right side
3,806,747.79x = 6,917,509,925,193.23 - Step 5: Solve for x
x = 6,917,509,925,193.23/3,806,747.79 - Step 6: Final answer
x = 1,817,170.54
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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.