Finding the Fourth Proportional to 1,931,777.46, 2,666,130.12 and 1,157,438.88
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Solution
The fourth proportional to 1,931,777.46, 2,666,130.12 and 1,157,438.88 is: 1,597,431.76
Step by Step Solution
- Step 1: Write the proportion equation
1,931,777.46 : 2,666,130.12 = 1,157,438.88 : x - Step 2: Convert to fraction form
1,931,777.46/2,666,130.12 = 1,157,438.88/x - Step 3: Cross multiply
1,931,777.46x = 2,666,130.12 × 1,157,438.88 - Step 4: Simplify right side
1,931,777.46x = 3,085,882,660,027.07 - Step 5: Solve for x
x = 3,085,882,660,027.07/1,931,777.46 - Step 6: Final answer
x = 1,597,431.76
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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.