Finding the Fourth Proportional to 1,438,121.50, 2,157,184.70 and 1,151,754.46
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Solution
The fourth proportional to 1,438,121.50, 2,157,184.70 and 1,151,754.46 is: 1,727,633.65
Step by Step Solution
- Step 1: Write the proportion equation
1,438,121.50 : 2,157,184.70 = 1,151,754.46 : x - Step 2: Convert to fraction form
1,438,121.50/2,157,184.70 = 1,151,754.46/x - Step 3: Cross multiply
1,438,121.50x = 2,157,184.70 × 1,151,754.46 - Step 4: Simplify right side
1,438,121.50x = 2,484,547,099,268.76 - Step 5: Solve for x
x = 2,484,547,099,268.76/1,438,121.50 - Step 6: Final answer
x = 1,727,633.65
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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.