Finding the Fourth Proportional to 2,124,826.11, 2,931,427.68 and 1,307,611.03
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Solution
The fourth proportional to 2,124,826.11, 2,931,427.68 and 1,307,611.03 is: 1,803,990.99
Step by Step Solution
- Step 1: Write the proportion equation
2,124,826.11 : 2,931,427.68 = 1,307,611.03 : x - Step 2: Convert to fraction form
2,124,826.11/2,931,427.68 = 1,307,611.03/x - Step 3: Cross multiply
2,124,826.11x = 2,931,427.68 × 1,307,611.03 - Step 4: Simplify right side
2,124,826.11x = 3,833,167,168,015.31 - Step 5: Solve for x
x = 3,833,167,168,015.31/2,124,826.11 - Step 6: Final answer
x = 1,803,990.99
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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.