Finding the Fourth Proportional to 2,908,685.68, 4,013,856.73 and 1,667,406.12
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Solution
The fourth proportional to 2,908,685.68, 4,013,856.73 and 1,667,406.12 is: 2,300,946.21
Step by Step Solution
- Step 1: Write the proportion equation
2,908,685.68 : 4,013,856.73 = 1,667,406.12 : x - Step 2: Convert to fraction form
2,908,685.68/4,013,856.73 = 1,667,406.12/x - Step 3: Cross multiply
2,908,685.68x = 4,013,856.73 × 1,667,406.12 - Step 4: Simplify right side
2,908,685.68x = 6,692,729,272,236.67 - Step 5: Solve for x
x = 6,692,729,272,236.67/2,908,685.68 - Step 6: Final answer
x = 2,300,946.21
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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.